Home / 676,880.10-1,015,320.15-657,197.10

Finding the Fourth Proportional to 676,880.10, 1,015,320.15 and 657,197.10

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Solution

The fourth proportional to 676,880.10, 1,015,320.15 and 657,197.10 is: 985,795.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,880.10 : 1,015,320.15 = 657,197.10 : x
  2. Step 2: Convert to fraction form
    676,880.10/1,015,320.15 = 657,197.10/x
  3. Step 3: Cross multiply
    676,880.10x = 1,015,320.15 × 657,197.10
  4. Step 4: Simplify right side
    676,880.10x = 667,265,458,151.57
  5. Step 5: Solve for x
    x = 667,265,458,151.57/676,880.10
  6. Step 6: Final answer
    x = 985,795.65

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Double scale
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Similar ratio
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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.