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Finding the Fourth Proportional to 681,404.70, 933,527.78 and 655,865.79

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Solution

The fourth proportional to 681,404.70, 933,527.78 and 655,865.79 is: 898,539.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,404.70 : 933,527.78 = 655,865.79 : x
  2. Step 2: Convert to fraction form
    681,404.70/933,527.78 = 655,865.79/x
  3. Step 3: Cross multiply
    681,404.70x = 933,527.78 × 655,865.79
  4. Step 4: Simplify right side
    681,404.70x = 612,268,931,637.32
  5. Step 5: Solve for x
    x = 612,268,931,637.32/681,404.70
  6. Step 6: Final answer
    x = 898,539.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.