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Finding the Fourth Proportional to 404,834.60, 607,251.90 and 124,315.40

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Solution

The fourth proportional to 404,834.60, 607,251.90 and 124,315.40 is: 186,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,834.60 : 607,251.90 = 124,315.40 : x
  2. Step 2: Convert to fraction form
    404,834.60/607,251.90 = 124,315.40/x
  3. Step 3: Cross multiply
    404,834.60x = 607,251.90 × 124,315.40
  4. Step 4: Simplify right side
    404,834.60x = 75,490,762,849.26
  5. Step 5: Solve for x
    x = 75,490,762,849.26/404,834.60
  6. Step 6: Final answer
    x = 186,473.10

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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.