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Finding the Fourth Proportional to 469,897.71, 648,459.30 and 255,037.87

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Solution

The fourth proportional to 469,897.71, 648,459.30 and 255,037.87 is: 351,952.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,897.71 : 648,459.30 = 255,037.87 : x
  2. Step 2: Convert to fraction form
    469,897.71/648,459.30 = 255,037.87/x
  3. Step 3: Cross multiply
    469,897.71x = 648,459.30 × 255,037.87
  4. Step 4: Simplify right side
    469,897.71x = 165,381,678,653.69
  5. Step 5: Solve for x
    x = 165,381,678,653.69/469,897.71
  6. Step 6: Final answer
    x = 351,952.51

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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.