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Finding the Fourth Proportional to 295,218.70, 442,257.13 and 247,264.40

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Solution

The fourth proportional to 295,218.70, 442,257.13 and 247,264.40 is: 370,418.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,218.70 : 442,257.13 = 247,264.40 : x
  2. Step 2: Convert to fraction form
    295,218.70/442,257.13 = 247,264.40/x
  3. Step 3: Cross multiply
    295,218.70x = 442,257.13 × 247,264.40
  4. Step 4: Simplify right side
    295,218.70x = 109,354,443,895.17
  5. Step 5: Solve for x
    x = 109,354,443,895.17/295,218.70
  6. Step 6: Final answer
    x = 370,418.42

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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.