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Finding the Fourth Proportional to 704,468.13, 972,166.40 and 382,178.19

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Solution

The fourth proportional to 704,468.13, 972,166.40 and 382,178.19 is: 527,406.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,468.13 : 972,166.40 = 382,178.19 : x
  2. Step 2: Convert to fraction form
    704,468.13/972,166.40 = 382,178.19/x
  3. Step 3: Cross multiply
    704,468.13x = 972,166.40 × 382,178.19
  4. Step 4: Simplify right side
    704,468.13x = 371,540,797,714.25
  5. Step 5: Solve for x
    x = 371,540,797,714.25/704,468.13
  6. Step 6: Final answer
    x = 527,406.11

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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.