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Finding the Fourth Proportional to 453,907.71, 680,861.75 and 453,251.79

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Solution

The fourth proportional to 453,907.71, 680,861.75 and 453,251.79 is: 679,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,907.71 : 680,861.75 = 453,251.79 : x
  2. Step 2: Convert to fraction form
    453,907.71/680,861.75 = 453,251.79/x
  3. Step 3: Cross multiply
    453,907.71x = 680,861.75 × 453,251.79
  4. Step 4: Simplify right side
    453,907.71x = 308,601,804,663.77
  5. Step 5: Solve for x
    x = 308,601,804,663.77/453,907.71
  6. Step 6: Final answer
    x = 679,877.86

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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.