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Finding the Fourth Proportional to 535,061.85, 738,387.70 and 293,348.23

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Solution

The fourth proportional to 535,061.85, 738,387.70 and 293,348.23 is: 404,821.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,061.85 : 738,387.70 = 293,348.23 : x
  2. Step 2: Convert to fraction form
    535,061.85/738,387.70 = 293,348.23/x
  3. Step 3: Cross multiply
    535,061.85x = 738,387.70 × 293,348.23
  4. Step 4: Simplify right side
    535,061.85x = 216,604,726,422.86
  5. Step 5: Solve for x
    x = 216,604,726,422.86/535,061.85
  6. Step 6: Final answer
    x = 404,821.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.