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Finding the Fourth Proportional to 552,864.86, 763,188.92 and 371,681.88

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Solution

The fourth proportional to 552,864.86, 763,188.92 and 371,681.88 is: 513,079.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,864.86 : 763,188.92 = 371,681.88 : x
  2. Step 2: Convert to fraction form
    552,864.86/763,188.92 = 371,681.88/x
  3. Step 3: Cross multiply
    552,864.86x = 763,188.92 × 371,681.88
  4. Step 4: Simplify right side
    552,864.86x = 283,663,492,580.77
  5. Step 5: Solve for x
    x = 283,663,492,580.77/552,864.86
  6. Step 6: Final answer
    x = 513,079.26

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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.