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Finding the Fourth Proportional to 500,432.76, 690,598.62 and 270,992.76

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Solution

The fourth proportional to 500,432.76, 690,598.62 and 270,992.76 is: 373,970.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,432.76 : 690,598.62 = 270,992.76 : x
  2. Step 2: Convert to fraction form
    500,432.76/690,598.62 = 270,992.76/x
  3. Step 3: Cross multiply
    500,432.76x = 690,598.62 × 270,992.76
  4. Step 4: Simplify right side
    500,432.76x = 187,147,226,085.99
  5. Step 5: Solve for x
    x = 187,147,226,085.99/500,432.76
  6. Step 6: Final answer
    x = 373,970.77

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.