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Finding the Fourth Proportional to 416,145.48, 574,276.68 and 225,154.68

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Solution

The fourth proportional to 416,145.48, 574,276.68 and 225,154.68 is: 310,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,145.48 : 574,276.68 = 225,154.68 : x
  2. Step 2: Convert to fraction form
    416,145.48/574,276.68 = 225,154.68/x
  3. Step 3: Cross multiply
    416,145.48x = 574,276.68 × 225,154.68
  4. Step 4: Simplify right side
    416,145.48x = 129,301,082,116.86
  5. Step 5: Solve for x
    x = 129,301,082,116.86/416,145.48
  6. Step 6: Final answer
    x = 310,711.25

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1.5x scale

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.