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Finding the Fourth Proportional to 437,616.60, 656,424.90 and 434,851.80

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Solution

The fourth proportional to 437,616.60, 656,424.90 and 434,851.80 is: 652,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,616.60 : 656,424.90 = 434,851.80 : x
  2. Step 2: Convert to fraction form
    437,616.60/656,424.90 = 434,851.80/x
  3. Step 3: Cross multiply
    437,616.60x = 656,424.90 × 434,851.80
  4. Step 4: Simplify right side
    437,616.60x = 285,447,549,329.82
  5. Step 5: Solve for x
    x = 285,447,549,329.82/437,616.60
  6. Step 6: Final answer
    x = 652,277.70

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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.