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Finding the Fourth Proportional to 690,211.26, 952,345.08 and 435,414.78

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Solution

The fourth proportional to 690,211.26, 952,345.08 and 435,414.78 is: 600,780.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,211.26 : 952,345.08 = 435,414.78 : x
  2. Step 2: Convert to fraction form
    690,211.26/952,345.08 = 435,414.78/x
  3. Step 3: Cross multiply
    690,211.26x = 952,345.08 × 435,414.78
  4. Step 4: Simplify right side
    690,211.26x = 414,665,123,492.28
  5. Step 5: Solve for x
    x = 414,665,123,492.28/690,211.26
  6. Step 6: Final answer
    x = 600,780.00

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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.