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Finding the Fourth Proportional to 696,654.84, 961,383.39 and 406,210.36

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Solution

The fourth proportional to 696,654.84, 961,383.39 and 406,210.36 is: 560,570.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,654.84 : 961,383.39 = 406,210.36 : x
  2. Step 2: Convert to fraction form
    696,654.84/961,383.39 = 406,210.36/x
  3. Step 3: Cross multiply
    696,654.84x = 961,383.39 × 406,210.36
  4. Step 4: Simplify right side
    696,654.84x = 390,523,893,139.30
  5. Step 5: Solve for x
    x = 390,523,893,139.30/696,654.84
  6. Step 6: Final answer
    x = 560,570.13

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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.