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Finding the Fourth Proportional to 702,265.18, 969,153.40 and 396,352.14

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Solution

The fourth proportional to 702,265.18, 969,153.40 and 396,352.14 is: 546,981.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,265.18 : 969,153.40 = 396,352.14 : x
  2. Step 2: Convert to fraction form
    702,265.18/969,153.40 = 396,352.14/x
  3. Step 3: Cross multiply
    702,265.18x = 969,153.40 × 396,352.14
  4. Step 4: Simplify right side
    702,265.18x = 384,126,025,510.28
  5. Step 5: Solve for x
    x = 384,126,025,510.28/702,265.18
  6. Step 6: Final answer
    x = 546,981.45

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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.