Home / 623,387.76-859,876.20-432,331.44

Finding the Fourth Proportional to 623,387.76, 859,876.20 and 432,331.44

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Solution

The fourth proportional to 623,387.76, 859,876.20 and 432,331.44 is: 596,340.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,387.76 : 859,876.20 = 432,331.44 : x
  2. Step 2: Convert to fraction form
    623,387.76/859,876.20 = 432,331.44/x
  3. Step 3: Cross multiply
    623,387.76x = 859,876.20 × 432,331.44
  4. Step 4: Simplify right side
    623,387.76x = 371,751,515,767.73
  5. Step 5: Solve for x
    x = 371,751,515,767.73/623,387.76
  6. Step 6: Final answer
    x = 596,340.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.