Home / 819,657.96-1,131,132.93-457,104.72

Finding the Fourth Proportional to 819,657.96, 1,131,132.93 and 457,104.72

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Solution

The fourth proportional to 819,657.96, 1,131,132.93 and 457,104.72 is: 630,807.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,657.96 : 1,131,132.93 = 457,104.72 : x
  2. Step 2: Convert to fraction form
    819,657.96/1,131,132.93 = 457,104.72/x
  3. Step 3: Cross multiply
    819,657.96x = 1,131,132.93 × 457,104.72
  4. Step 4: Simplify right side
    819,657.96x = 517,046,201,250.43
  5. Step 5: Solve for x
    x = 517,046,201,250.43/819,657.96
  6. Step 6: Final answer
    x = 630,807.27

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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.