Home / 689,983.92-951,510.24-448,331.76

Finding the Fourth Proportional to 689,983.92, 951,510.24 and 448,331.76

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Solution

The fourth proportional to 689,983.92, 951,510.24 and 448,331.76 is: 618,264.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,983.92 : 951,510.24 = 448,331.76 : x
  2. Step 2: Convert to fraction form
    689,983.92/951,510.24 = 448,331.76/x
  3. Step 3: Cross multiply
    689,983.92x = 951,510.24 × 448,331.76
  4. Step 4: Simplify right side
    689,983.92x = 426,592,260,557.22
  5. Step 5: Solve for x
    x = 426,592,260,557.22/689,983.92
  6. Step 6: Final answer
    x = 618,264.06

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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.