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Finding the Fourth Proportional to 961,610.10, 1,440,665.55 and 783,150.90

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Solution

The fourth proportional to 961,610.10, 1,440,665.55 and 783,150.90 is: 1,173,301.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,610.10 : 1,440,665.55 = 783,150.90 : x
  2. Step 2: Convert to fraction form
    961,610.10/1,440,665.55 = 783,150.90/x
  3. Step 3: Cross multiply
    961,610.10x = 1,440,665.55 × 783,150.90
  4. Step 4: Simplify right side
    961,610.10x = 1,128,258,522,081.50
  5. Step 5: Solve for x
    x = 1,128,258,522,081.50/961,610.10
  6. Step 6: Final answer
    x = 1,173,301.45

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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.