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Finding the Fourth Proportional to 500,047.12, 750,070.68 and 219,566.80

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Solution

The fourth proportional to 500,047.12, 750,070.68 and 219,566.80 is: 329,350.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,047.12 : 750,070.68 = 219,566.80 : x
  2. Step 2: Convert to fraction form
    500,047.12/750,070.68 = 219,566.80/x
  3. Step 3: Cross multiply
    500,047.12x = 750,070.68 × 219,566.80
  4. Step 4: Simplify right side
    500,047.12x = 164,690,618,981.42
  5. Step 5: Solve for x
    x = 164,690,618,981.42/500,047.12
  6. Step 6: Final answer
    x = 329,350.20

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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.