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Finding the Fourth Proportional to 432,616.97, 596,123.71 and 389,511.20

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Solution

The fourth proportional to 432,616.97, 596,123.71 and 389,511.20 is: 536,726.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,616.97 : 596,123.71 = 389,511.20 : x
  2. Step 2: Convert to fraction form
    432,616.97/596,123.71 = 389,511.20/x
  3. Step 3: Cross multiply
    432,616.97x = 596,123.71 × 389,511.20
  4. Step 4: Simplify right side
    432,616.97x = 232,196,862,147.08
  5. Step 5: Solve for x
    x = 232,196,862,147.08/432,616.97
  6. Step 6: Final answer
    x = 536,726.20

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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.