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Finding the Fourth Proportional to 704,603.41, 972,604.87 and 418,123.49

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Solution

The fourth proportional to 704,603.41, 972,604.87 and 418,123.49 is: 577,160.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,603.41 : 972,604.87 = 418,123.49 : x
  2. Step 2: Convert to fraction form
    704,603.41/972,604.87 = 418,123.49/x
  3. Step 3: Cross multiply
    704,603.41x = 972,604.87 × 418,123.49
  4. Step 4: Simplify right side
    704,603.41x = 406,668,936,727.06
  5. Step 5: Solve for x
    x = 406,668,936,727.06/704,603.41
  6. Step 6: Final answer
    x = 577,160.05

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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.