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Finding the Fourth Proportional to 656,308.67, 905,360.15 and 452,005.61

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Solution

The fourth proportional to 656,308.67, 905,360.15 and 452,005.61 is: 623,529.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,308.67 : 905,360.15 = 452,005.61 : x
  2. Step 2: Convert to fraction form
    656,308.67/905,360.15 = 452,005.61/x
  3. Step 3: Cross multiply
    656,308.67x = 905,360.15 × 452,005.61
  4. Step 4: Simplify right side
    656,308.67x = 409,227,863,473.66
  5. Step 5: Solve for x
    x = 409,227,863,473.66/656,308.67
  6. Step 6: Final answer
    x = 623,529.58

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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.