Home / 688,358.16-1,032,381.54-261,741.78

Finding the Fourth Proportional to 688,358.16, 1,032,381.54 and 261,741.78

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Solution

The fourth proportional to 688,358.16, 1,032,381.54 and 261,741.78 is: 392,553.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,358.16 : 1,032,381.54 = 261,741.78 : x
  2. Step 2: Convert to fraction form
    688,358.16/1,032,381.54 = 261,741.78/x
  3. Step 3: Cross multiply
    688,358.16x = 1,032,381.54 × 261,741.78
  4. Step 4: Simplify right side
    688,358.16x = 270,217,381,918.74
  5. Step 5: Solve for x
    x = 270,217,381,918.74/688,358.16
  6. Step 6: Final answer
    x = 392,553.47

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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.