Home / 819,810.08-1,131,335.52-457,234.40

Finding the Fourth Proportional to 819,810.08, 1,131,335.52 and 457,234.40

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Solution

The fourth proportional to 819,810.08, 1,131,335.52 and 457,234.40 is: 630,982.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,810.08 : 1,131,335.52 = 457,234.40 : x
  2. Step 2: Convert to fraction form
    819,810.08/1,131,335.52 = 457,234.40/x
  3. Step 3: Cross multiply
    819,810.08x = 1,131,335.52 × 457,234.40
  4. Step 4: Simplify right side
    819,810.08x = 517,285,517,685.89
  5. Step 5: Solve for x
    x = 517,285,517,685.89/819,810.08
  6. Step 6: Final answer
    x = 630,982.14

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Double scale
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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.