Home / 1,688,780.43-2,533,147.92-409,398.93

Finding the Fourth Proportional to 1,688,780.43, 2,533,147.92 and 409,398.93

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Solution

The fourth proportional to 1,688,780.43, 2,533,147.92 and 409,398.93 is: 614,092.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,780.43 : 2,533,147.92 = 409,398.93 : x
  2. Step 2: Convert to fraction form
    1,688,780.43/2,533,147.92 = 409,398.93/x
  3. Step 3: Cross multiply
    1,688,780.43x = 2,533,147.92 × 409,398.93
  4. Step 4: Simplify right side
    1,688,780.43x = 1,037,068,047,979.73
  5. Step 5: Solve for x
    x = 1,037,068,047,979.73/1,688,780.43
  6. Step 6: Final answer
    x = 614,092.89

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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.