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Finding the Fourth Proportional to 261,798.20, 392,697.30 and 242,552.60

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Solution

The fourth proportional to 261,798.20, 392,697.30 and 242,552.60 is: 363,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,798.20 : 392,697.30 = 242,552.60 : x
  2. Step 2: Convert to fraction form
    261,798.20/392,697.30 = 242,552.60/x
  3. Step 3: Cross multiply
    261,798.20x = 392,697.30 × 242,552.60
  4. Step 4: Simplify right side
    261,798.20x = 95,249,751,127.98
  5. Step 5: Solve for x
    x = 95,249,751,127.98/261,798.20
  6. Step 6: Final answer
    x = 363,828.90

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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.