Home / 676,065.57-1,012,640.40-636,318.17

Finding the Fourth Proportional to 676,065.57, 1,012,640.40 and 636,318.17

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Solution

The fourth proportional to 676,065.57, 1,012,640.40 and 636,318.17 is: 953,105.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,065.57 : 1,012,640.40 = 636,318.17 : x
  2. Step 2: Convert to fraction form
    676,065.57/1,012,640.40 = 636,318.17/x
  3. Step 3: Cross multiply
    676,065.57x = 1,012,640.40 × 636,318.17
  4. Step 4: Simplify right side
    676,065.57x = 644,361,481,132.87
  5. Step 5: Solve for x
    x = 644,361,481,132.87/676,065.57
  6. Step 6: Final answer
    x = 953,105.01

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Double scale
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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.