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Finding the Fourth Proportional to 742,523.70, 1,113,785.55 and 742,523.70

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Solution

The fourth proportional to 742,523.70, 1,113,785.55 and 742,523.70 is: 1,113,785.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,523.70 : 1,113,785.55 = 742,523.70 : x
  2. Step 2: Convert to fraction form
    742,523.70/1,113,785.55 = 742,523.70/x
  3. Step 3: Cross multiply
    742,523.70x = 1,113,785.55 × 742,523.70
  4. Step 4: Simplify right side
    742,523.70x = 827,012,167,592.54
  5. Step 5: Solve for x
    x = 827,012,167,592.54/742,523.70
  6. Step 6: Final answer
    x = 1,113,785.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.