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Finding the Fourth Proportional to 359,139.40, 538,709.10 and 233,168.20

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Solution

The fourth proportional to 359,139.40, 538,709.10 and 233,168.20 is: 349,752.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,139.40 : 538,709.10 = 233,168.20 : x
  2. Step 2: Convert to fraction form
    359,139.40/538,709.10 = 233,168.20/x
  3. Step 3: Cross multiply
    359,139.40x = 538,709.10 × 233,168.20
  4. Step 4: Simplify right side
    359,139.40x = 125,609,831,170.62
  5. Step 5: Solve for x
    x = 125,609,831,170.62/359,139.40
  6. Step 6: Final answer
    x = 349,752.30

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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.