Home / 659,215.40-988,823.10-185,894.60

Finding the Fourth Proportional to 659,215.40, 988,823.10 and 185,894.60

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Solution

The fourth proportional to 659,215.40, 988,823.10 and 185,894.60 is: 278,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,215.40 : 988,823.10 = 185,894.60 : x
  2. Step 2: Convert to fraction form
    659,215.40/988,823.10 = 185,894.60/x
  3. Step 3: Cross multiply
    659,215.40x = 988,823.10 × 185,894.60
  4. Step 4: Simplify right side
    659,215.40x = 183,816,874,645.26
  5. Step 5: Solve for x
    x = 183,816,874,645.26/659,215.40
  6. Step 6: Final answer
    x = 278,841.90

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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.