Home / 658,923.40-988,385.10-185,602.60

Finding the Fourth Proportional to 658,923.40, 988,385.10 and 185,602.60

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Solution

The fourth proportional to 658,923.40, 988,385.10 and 185,602.60 is: 278,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,923.40 : 988,385.10 = 185,602.60 : x
  2. Step 2: Convert to fraction form
    658,923.40/988,385.10 = 185,602.60/x
  3. Step 3: Cross multiply
    658,923.40x = 988,385.10 × 185,602.60
  4. Step 4: Simplify right side
    658,923.40x = 183,446,844,361.26
  5. Step 5: Solve for x
    x = 183,446,844,361.26/658,923.40
  6. Step 6: Final answer
    x = 278,403.90

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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.