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Finding the Fourth Proportional to 261,797.20, 392,695.80 and 242,551.60

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Solution

The fourth proportional to 261,797.20, 392,695.80 and 242,551.60 is: 363,827.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,797.20 : 392,695.80 = 242,551.60 : x
  2. Step 2: Convert to fraction form
    261,797.20/392,695.80 = 242,551.60/x
  3. Step 3: Cross multiply
    261,797.20x = 392,695.80 × 242,551.60
  4. Step 4: Simplify right side
    261,797.20x = 95,248,994,603.28
  5. Step 5: Solve for x
    x = 95,248,994,603.28/261,797.20
  6. Step 6: Final answer
    x = 363,827.40

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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.