Home / 653,264,578.80-979,896,868.20-490,005,903.60

Finding the Fourth Proportional to 653,264,578.80, 979,896,868.20 and 490,005,903.60

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Solution

The fourth proportional to 653,264,578.80, 979,896,868.20 and 490,005,903.60 is: 735,008,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,264,578.80 : 979,896,868.20 = 490,005,903.60 : x
  2. Step 2: Convert to fraction form
    653,264,578.80/979,896,868.20 = 490,005,903.60/x
  3. Step 3: Cross multiply
    653,264,578.80x = 979,896,868.20 × 490,005,903.60
  4. Step 4: Simplify right side
    653,264,578.80x = 480,155,250,337,151,168
  5. Step 5: Solve for x
    x = 480,155,250,337,151,168/653,264,578.80
  6. Step 6: Final answer
    x = 735,008,855.40

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Double scale
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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.