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Finding the Fourth Proportional to 649,393.89, 969,335.36 and 572,696.34

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Solution

The fourth proportional to 649,393.89, 969,335.36 and 572,696.34 is: 854,850.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,393.89 : 969,335.36 = 572,696.34 : x
  2. Step 2: Convert to fraction form
    649,393.89/969,335.36 = 572,696.34/x
  3. Step 3: Cross multiply
    649,393.89x = 969,335.36 × 572,696.34
  4. Step 4: Simplify right side
    649,393.89x = 555,134,810,041.10
  5. Step 5: Solve for x
    x = 555,134,810,041.10/649,393.89
  6. Step 6: Final answer
    x = 854,850.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.