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Finding the Fourth Proportional to 359,524.40, 539,416.20 and 346,564.40

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Solution

The fourth proportional to 359,524.40, 539,416.20 and 346,564.40 is: 519,971.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,524.40 : 539,416.20 = 346,564.40 : x
  2. Step 2: Convert to fraction form
    359,524.40/539,416.20 = 346,564.40/x
  3. Step 3: Cross multiply
    359,524.40x = 539,416.20 × 346,564.40
  4. Step 4: Simplify right side
    359,524.40x = 186,942,451,703.28
  5. Step 5: Solve for x
    x = 186,942,451,703.28/359,524.40
  6. Step 6: Final answer
    x = 519,971.53

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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.