Home / 453,112.20-679,646.70-153,563.40

Finding the Fourth Proportional to 453,112.20, 679,646.70 and 153,563.40

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Solution

The fourth proportional to 453,112.20, 679,646.70 and 153,563.40 is: 230,337.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,112.20 : 679,646.70 = 153,563.40 : x
  2. Step 2: Convert to fraction form
    453,112.20/679,646.70 = 153,563.40/x
  3. Step 3: Cross multiply
    453,112.20x = 679,646.70 × 153,563.40
  4. Step 4: Simplify right side
    453,112.20x = 104,368,858,050.78
  5. Step 5: Solve for x
    x = 104,368,858,050.78/453,112.20
  6. Step 6: Final answer
    x = 230,337.78

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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.