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Finding the Fourth Proportional to 542,976.60, 816,020.10 and 474,547.80

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Solution

The fourth proportional to 542,976.60, 816,020.10 and 474,547.80 is: 713,180.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,976.60 : 816,020.10 = 474,547.80 : x
  2. Step 2: Convert to fraction form
    542,976.60/816,020.10 = 474,547.80/x
  3. Step 3: Cross multiply
    542,976.60x = 816,020.10 × 474,547.80
  4. Step 4: Simplify right side
    542,976.60x = 387,240,543,210.78
  5. Step 5: Solve for x
    x = 387,240,543,210.78/542,976.60
  6. Step 6: Final answer
    x = 713,180.91

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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.