Home / 921,353.06-1,271,449.94-513,445.92

Finding the Fourth Proportional to 921,353.06, 1,271,449.94 and 513,445.92

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Solution

The fourth proportional to 921,353.06, 1,271,449.94 and 513,445.92 is: 708,545.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,353.06 : 1,271,449.94 = 513,445.92 : x
  2. Step 2: Convert to fraction form
    921,353.06/1,271,449.94 = 513,445.92/x
  3. Step 3: Cross multiply
    921,353.06x = 1,271,449.94 × 513,445.92
  4. Step 4: Simplify right side
    921,353.06x = 652,820,784,177.25
  5. Step 5: Solve for x
    x = 652,820,784,177.25/921,353.06
  6. Step 6: Final answer
    x = 708,545.74

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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.