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Finding the Fourth Proportional to 359,407.80, 539,111.70 and 110,057.40

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Solution

The fourth proportional to 359,407.80, 539,111.70 and 110,057.40 is: 165,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,407.80 : 539,111.70 = 110,057.40 : x
  2. Step 2: Convert to fraction form
    359,407.80/539,111.70 = 110,057.40/x
  3. Step 3: Cross multiply
    359,407.80x = 539,111.70 × 110,057.40
  4. Step 4: Simplify right side
    359,407.80x = 59,333,232,011.58
  5. Step 5: Solve for x
    x = 59,333,232,011.58/359,407.80
  6. Step 6: Final answer
    x = 165,086.10

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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.