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Finding the Fourth Proportional to 359,201.20, 538,607.40 and 148,860.40

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Solution

The fourth proportional to 359,201.20, 538,607.40 and 148,860.40 is: 223,210.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,201.20 : 538,607.40 = 148,860.40 : x
  2. Step 2: Convert to fraction form
    359,201.20/538,607.40 = 148,860.40/x
  3. Step 3: Cross multiply
    359,201.20x = 538,607.40 × 148,860.40
  4. Step 4: Simplify right side
    359,201.20x = 80,177,313,006.96
  5. Step 5: Solve for x
    x = 80,177,313,006.96/359,201.20
  6. Step 6: Final answer
    x = 223,210.04

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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.