Home / 621,997.10-933,979.80-472,406.30

Finding the Fourth Proportional to 621,997.10, 933,979.80 and 472,406.30

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Solution

The fourth proportional to 621,997.10, 933,979.80 and 472,406.30 is: 709,356.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,997.10 : 933,979.80 = 472,406.30 : x
  2. Step 2: Convert to fraction form
    621,997.10/933,979.80 = 472,406.30/x
  3. Step 3: Cross multiply
    621,997.10x = 933,979.80 × 472,406.30
  4. Step 4: Simplify right side
    621,997.10x = 441,217,941,592.74
  5. Step 5: Solve for x
    x = 441,217,941,592.74/621,997.10
  6. Step 6: Final answer
    x = 709,356.91

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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.