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Finding the Fourth Proportional to 546,429.70, 819,644.55 and 453,117.70

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Solution

The fourth proportional to 546,429.70, 819,644.55 and 453,117.70 is: 679,676.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,429.70 : 819,644.55 = 453,117.70 : x
  2. Step 2: Convert to fraction form
    546,429.70/819,644.55 = 453,117.70/x
  3. Step 3: Cross multiply
    546,429.70x = 819,644.55 × 453,117.70
  4. Step 4: Simplify right side
    546,429.70x = 371,395,453,313.54
  5. Step 5: Solve for x
    x = 371,395,453,313.54/546,429.70
  6. Step 6: Final answer
    x = 679,676.55

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Similar ratio
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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.