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Finding the Fourth Proportional to 543,712.41, 750,381.91 and 328,970.88

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Solution

The fourth proportional to 543,712.41, 750,381.91 and 328,970.88 is: 454,015.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,712.41 : 750,381.91 = 328,970.88 : x
  2. Step 2: Convert to fraction form
    543,712.41/750,381.91 = 328,970.88/x
  3. Step 3: Cross multiply
    543,712.41x = 750,381.91 × 328,970.88
  4. Step 4: Simplify right side
    543,712.41x = 246,853,796,446.35
  5. Step 5: Solve for x
    x = 246,853,796,446.35/543,712.41
  6. Step 6: Final answer
    x = 454,015.38

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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.