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Finding the Fourth Proportional to 687,817.44, 947,626.61 and 532,233.72

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Solution

The fourth proportional to 687,817.44, 947,626.61 and 532,233.72 is: 733,274.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,817.44 : 947,626.61 = 532,233.72 : x
  2. Step 2: Convert to fraction form
    687,817.44/947,626.61 = 532,233.72/x
  3. Step 3: Cross multiply
    687,817.44x = 947,626.61 × 532,233.72
  4. Step 4: Simplify right side
    687,817.44x = 504,358,833,150.12
  5. Step 5: Solve for x
    x = 504,358,833,150.12/687,817.44
  6. Step 6: Final answer
    x = 733,274.27

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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.