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Finding the Fourth Proportional to 406,666.13, 560,700.40 and 329,968.04

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Solution

The fourth proportional to 406,666.13, 560,700.40 and 329,968.04 is: 454,951.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,666.13 : 560,700.40 = 329,968.04 : x
  2. Step 2: Convert to fraction form
    406,666.13/560,700.40 = 329,968.04/x
  3. Step 3: Cross multiply
    406,666.13x = 560,700.40 × 329,968.04
  4. Step 4: Simplify right side
    406,666.13x = 185,013,212,015.22
  5. Step 5: Solve for x
    x = 185,013,212,015.22/406,666.13
  6. Step 6: Final answer
    x = 454,951.12

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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.