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Finding the Fourth Proportional to 541,698.90, 812,859.52 and 423,037.14

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Solution

The fourth proportional to 541,698.90, 812,859.52 and 423,037.14 is: 634,798.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,698.90 : 812,859.52 = 423,037.14 : x
  2. Step 2: Convert to fraction form
    541,698.90/812,859.52 = 423,037.14/x
  3. Step 3: Cross multiply
    541,698.90x = 812,859.52 × 423,037.14
  4. Step 4: Simplify right side
    541,698.90x = 343,869,766,562.57
  5. Step 5: Solve for x
    x = 343,869,766,562.57/541,698.90
  6. Step 6: Final answer
    x = 634,798.72

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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.