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Finding the Fourth Proportional to 416,488.78, 624,727.68 and 100,948.42

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Solution

The fourth proportional to 416,488.78, 624,727.68 and 100,948.42 is: 151,421.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,488.78 : 624,727.68 = 100,948.42 : x
  2. Step 2: Convert to fraction form
    416,488.78/624,727.68 = 100,948.42/x
  3. Step 3: Cross multiply
    416,488.78x = 624,727.68 × 100,948.42
  4. Step 4: Simplify right side
    416,488.78x = 63,065,272,226.27
  5. Step 5: Solve for x
    x = 63,065,272,226.27/416,488.78
  6. Step 6: Final answer
    x = 151,421.30

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1.5x scale

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.