Home / 659,946,302.80-989,919,454.20-297,149,246.80

Finding the Fourth Proportional to 659,946,302.80, 989,919,454.20 and 297,149,246.80

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Solution

The fourth proportional to 659,946,302.80, 989,919,454.20 and 297,149,246.80 is: 445,723,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,946,302.80 : 989,919,454.20 = 297,149,246.80 : x
  2. Step 2: Convert to fraction form
    659,946,302.80/989,919,454.20 = 297,149,246.80/x
  3. Step 3: Cross multiply
    659,946,302.80x = 989,919,454.20 × 297,149,246.80
  4. Step 4: Simplify right side
    659,946,302.80x = 294,153,820,208,197,120
  5. Step 5: Solve for x
    x = 294,153,820,208,197,120/659,946,302.80
  6. Step 6: Final answer
    x = 445,723,870.20

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Double scale
Find fourth proportional to 659,946,303.80, 989,919,455.70 and 297,149,247.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.