Home / 516,890.70-773,586.45-453,905.10

Finding the Fourth Proportional to 516,890.70, 773,586.45 and 453,905.10

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Solution

The fourth proportional to 516,890.70, 773,586.45 and 453,905.10 is: 679,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,890.70 : 773,586.45 = 453,905.10 : x
  2. Step 2: Convert to fraction form
    516,890.70/773,586.45 = 453,905.10/x
  3. Step 3: Cross multiply
    516,890.70x = 773,586.45 × 453,905.10
  4. Step 4: Simplify right side
    516,890.70x = 351,134,834,945.90
  5. Step 5: Solve for x
    x = 351,134,834,945.90/516,890.70
  6. Step 6: Final answer
    x = 679,321.25

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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.