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Finding the Fourth Proportional to 886,806.96, 1,223,404.84 and 542,659.42

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Solution

The fourth proportional to 886,806.96, 1,223,404.84 and 542,659.42 is: 748,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,806.96 : 1,223,404.84 = 542,659.42 : x
  2. Step 2: Convert to fraction form
    886,806.96/1,223,404.84 = 542,659.42/x
  3. Step 3: Cross multiply
    886,806.96x = 1,223,404.84 × 542,659.42
  4. Step 4: Simplify right side
    886,806.96x = 663,892,160,899.59
  5. Step 5: Solve for x
    x = 663,892,160,899.59/886,806.96
  6. Step 6: Final answer
    x = 748,632.10

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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.