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Finding the Fourth Proportional to 506,434.12, 698,850.66 and 276,945.76

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Solution

The fourth proportional to 506,434.12, 698,850.66 and 276,945.76 is: 382,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,434.12 : 698,850.66 = 276,945.76 : x
  2. Step 2: Convert to fraction form
    506,434.12/698,850.66 = 276,945.76/x
  3. Step 3: Cross multiply
    506,434.12x = 698,850.66 × 276,945.76
  4. Step 4: Simplify right side
    506,434.12x = 193,543,727,160.20
  5. Step 5: Solve for x
    x = 193,543,727,160.20/506,434.12
  6. Step 6: Final answer
    x = 382,169.60

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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.