Home / 971,404.56-1,339,932.24-627,108.12

Finding the Fourth Proportional to 971,404.56, 1,339,932.24 and 627,108.12

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Solution

The fourth proportional to 971,404.56, 1,339,932.24 and 627,108.12 is: 865,017.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,404.56 : 1,339,932.24 = 627,108.12 : x
  2. Step 2: Convert to fraction form
    971,404.56/1,339,932.24 = 627,108.12/x
  3. Step 3: Cross multiply
    971,404.56x = 1,339,932.24 × 627,108.12
  4. Step 4: Simplify right side
    971,404.56x = 840,282,387,953.79
  5. Step 5: Solve for x
    x = 840,282,387,953.79/971,404.56
  6. Step 6: Final answer
    x = 865,017.96

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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.