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Finding the Fourth Proportional to 508,934.60, 763,401.90 and 176,510.60

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Solution

The fourth proportional to 508,934.60, 763,401.90 and 176,510.60 is: 264,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,934.60 : 763,401.90 = 176,510.60 : x
  2. Step 2: Convert to fraction form
    508,934.60/763,401.90 = 176,510.60/x
  3. Step 3: Cross multiply
    508,934.60x = 763,401.90 × 176,510.60
  4. Step 4: Simplify right side
    508,934.60x = 134,748,527,410.14
  5. Step 5: Solve for x
    x = 134,748,527,410.14/508,934.60
  6. Step 6: Final answer
    x = 264,765.90

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Double scale
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Similar ratio
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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.