Home / 985,781.40-1,478,672.10-649,202.10

Finding the Fourth Proportional to 985,781.40, 1,478,672.10 and 649,202.10

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Solution

The fourth proportional to 985,781.40, 1,478,672.10 and 649,202.10 is: 973,803.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,781.40 : 1,478,672.10 = 649,202.10 : x
  2. Step 2: Convert to fraction form
    985,781.40/1,478,672.10 = 649,202.10/x
  3. Step 3: Cross multiply
    985,781.40x = 1,478,672.10 × 649,202.10
  4. Step 4: Simplify right side
    985,781.40x = 959,957,032,531.41
  5. Step 5: Solve for x
    x = 959,957,032,531.41/985,781.40
  6. Step 6: Final answer
    x = 973,803.15

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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.