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Finding the Fourth Proportional to 483,080.40, 724,159.80 and 376,405.20

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Solution

The fourth proportional to 483,080.40, 724,159.80 and 376,405.20 is: 564,248.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,080.40 : 724,159.80 = 376,405.20 : x
  2. Step 2: Convert to fraction form
    483,080.40/724,159.80 = 376,405.20/x
  3. Step 3: Cross multiply
    483,080.40x = 724,159.80 × 376,405.20
  4. Step 4: Simplify right side
    483,080.40x = 272,577,514,350.96
  5. Step 5: Solve for x
    x = 272,577,514,350.96/483,080.40
  6. Step 6: Final answer
    x = 564,248.76

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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.