Home / 579,400.10-869,100.15-558,404.90

Finding the Fourth Proportional to 579,400.10, 869,100.15 and 558,404.90

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Solution

The fourth proportional to 579,400.10, 869,100.15 and 558,404.90 is: 837,607.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,400.10 : 869,100.15 = 558,404.90 : x
  2. Step 2: Convert to fraction form
    579,400.10/869,100.15 = 558,404.90/x
  3. Step 3: Cross multiply
    579,400.10x = 869,100.15 × 558,404.90
  4. Step 4: Simplify right side
    579,400.10x = 485,309,782,350.74
  5. Step 5: Solve for x
    x = 485,309,782,350.74/579,400.10
  6. Step 6: Final answer
    x = 837,607.35

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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.