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Finding the Fourth Proportional to 359,589.40, 539,513.70 and 346,629.40

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Solution

The fourth proportional to 359,589.40, 539,513.70 and 346,629.40 is: 520,069.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,589.40 : 539,513.70 = 346,629.40 : x
  2. Step 2: Convert to fraction form
    359,589.40/539,513.70 = 346,629.40/x
  3. Step 3: Cross multiply
    359,589.40x = 539,513.70 × 346,629.40
  4. Step 4: Simplify right side
    359,589.40x = 187,011,310,122.78
  5. Step 5: Solve for x
    x = 187,011,310,122.78/359,589.40
  6. Step 6: Final answer
    x = 520,069.03

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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.