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Finding the Fourth Proportional to 593,892.50, 819,356.86 and 390,053.86

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Solution

The fourth proportional to 593,892.50, 819,356.86 and 390,053.86 is: 538,133.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,892.50 : 819,356.86 = 390,053.86 : x
  2. Step 2: Convert to fraction form
    593,892.50/819,356.86 = 390,053.86/x
  3. Step 3: Cross multiply
    593,892.50x = 819,356.86 × 390,053.86
  4. Step 4: Simplify right side
    593,892.50x = 319,593,305,960.48
  5. Step 5: Solve for x
    x = 319,593,305,960.48/593,892.50
  6. Step 6: Final answer
    x = 538,133.26

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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.