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Finding the Fourth Proportional to 418,848.60, 578,024.04 and 237,567.90

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Solution

The fourth proportional to 418,848.60, 578,024.04 and 237,567.90 is: 327,851.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,848.60 : 578,024.04 = 237,567.90 : x
  2. Step 2: Convert to fraction form
    418,848.60/578,024.04 = 237,567.90/x
  3. Step 3: Cross multiply
    418,848.60x = 578,024.04 × 237,567.90
  4. Step 4: Simplify right side
    418,848.60x = 137,319,957,332.32
  5. Step 5: Solve for x
    x = 137,319,957,332.32/418,848.60
  6. Step 6: Final answer
    x = 327,851.06

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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.