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Finding the Fourth Proportional to 508,769.80, 763,154.70 and 176,379.40

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Solution

The fourth proportional to 508,769.80, 763,154.70 and 176,379.40 is: 264,569.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,769.80 : 763,154.70 = 176,379.40 : x
  2. Step 2: Convert to fraction form
    508,769.80/763,154.70 = 176,379.40/x
  3. Step 3: Cross multiply
    508,769.80x = 763,154.70 × 176,379.40
  4. Step 4: Simplify right side
    508,769.80x = 134,604,768,093.18
  5. Step 5: Solve for x
    x = 134,604,768,093.18/508,769.80
  6. Step 6: Final answer
    x = 264,569.10

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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.