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Finding the Fourth Proportional to 495,304.93, 742,438.85 and 207,281.59

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Solution

The fourth proportional to 495,304.93, 742,438.85 and 207,281.59 is: 310,705.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,304.93 : 742,438.85 = 207,281.59 : x
  2. Step 2: Convert to fraction form
    495,304.93/742,438.85 = 207,281.59/x
  3. Step 3: Cross multiply
    495,304.93x = 742,438.85 × 207,281.59
  4. Step 4: Simplify right side
    495,304.93x = 153,893,904,501.38
  5. Step 5: Solve for x
    x = 153,893,904,501.38/495,304.93
  6. Step 6: Final answer
    x = 310,705.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.