Home / 859,137.60-1,288,706.40-433,984.80

Finding the Fourth Proportional to 859,137.60, 1,288,706.40 and 433,984.80

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Solution

The fourth proportional to 859,137.60, 1,288,706.40 and 433,984.80 is: 650,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,137.60 : 1,288,706.40 = 433,984.80 : x
  2. Step 2: Convert to fraction form
    859,137.60/1,288,706.40 = 433,984.80/x
  3. Step 3: Cross multiply
    859,137.60x = 1,288,706.40 × 433,984.80
  4. Step 4: Simplify right side
    859,137.60x = 559,278,989,262.72
  5. Step 5: Solve for x
    x = 559,278,989,262.72/859,137.60
  6. Step 6: Final answer
    x = 650,977.20

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Double scale
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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.