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Finding the Fourth Proportional to 698,067.61, 963,374.45 and 525,681.43

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Solution

The fourth proportional to 698,067.61, 963,374.45 and 525,681.43 is: 725,471.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,067.61 : 963,374.45 = 525,681.43 : x
  2. Step 2: Convert to fraction form
    698,067.61/963,374.45 = 525,681.43/x
  3. Step 3: Cross multiply
    698,067.61x = 963,374.45 × 525,681.43
  4. Step 4: Simplify right side
    698,067.61x = 506,428,058,501.46
  5. Step 5: Solve for x
    x = 506,428,058,501.46/698,067.61
  6. Step 6: Final answer
    x = 725,471.36

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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.