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Finding the Fourth Proportional to 261,707.70, 392,561.55 and 242,462.10

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Solution

The fourth proportional to 261,707.70, 392,561.55 and 242,462.10 is: 363,693.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,707.70 : 392,561.55 = 242,462.10 : x
  2. Step 2: Convert to fraction form
    261,707.70/392,561.55 = 242,462.10/x
  3. Step 3: Cross multiply
    261,707.70x = 392,561.55 × 242,462.10
  4. Step 4: Simplify right side
    261,707.70x = 95,181,297,792.26
  5. Step 5: Solve for x
    x = 95,181,297,792.26/261,707.70
  6. Step 6: Final answer
    x = 363,693.15

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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.