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Finding the Fourth Proportional to 543,720.66, 750,074.13 and 382,665.06

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Solution

The fourth proportional to 543,720.66, 750,074.13 and 382,665.06 is: 527,894.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,720.66 : 750,074.13 = 382,665.06 : x
  2. Step 2: Convert to fraction form
    543,720.66/750,074.13 = 382,665.06/x
  3. Step 3: Cross multiply
    543,720.66x = 750,074.13 × 382,665.06
  4. Step 4: Simplify right side
    543,720.66x = 287,027,161,960.90
  5. Step 5: Solve for x
    x = 287,027,161,960.90/543,720.66
  6. Step 6: Final answer
    x = 527,894.53

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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.