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Finding the Fourth Proportional to 544,719.80, 817,079.70 and 404,751.80

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Solution

The fourth proportional to 544,719.80, 817,079.70 and 404,751.80 is: 607,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,719.80 : 817,079.70 = 404,751.80 : x
  2. Step 2: Convert to fraction form
    544,719.80/817,079.70 = 404,751.80/x
  3. Step 3: Cross multiply
    544,719.80x = 817,079.70 × 404,751.80
  4. Step 4: Simplify right side
    544,719.80x = 330,714,479,318.46
  5. Step 5: Solve for x
    x = 330,714,479,318.46/544,719.80
  6. Step 6: Final answer
    x = 607,127.70

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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.