Home / 811,500.40-1,217,250.60-587,551.60

Finding the Fourth Proportional to 811,500.40, 1,217,250.60 and 587,551.60

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Solution

The fourth proportional to 811,500.40, 1,217,250.60 and 587,551.60 is: 881,327.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,500.40 : 1,217,250.60 = 587,551.60 : x
  2. Step 2: Convert to fraction form
    811,500.40/1,217,250.60 = 587,551.60/x
  3. Step 3: Cross multiply
    811,500.40x = 1,217,250.60 × 587,551.60
  4. Step 4: Simplify right side
    811,500.40x = 715,197,537,630.96
  5. Step 5: Solve for x
    x = 715,197,537,630.96/811,500.40
  6. Step 6: Final answer
    x = 881,327.40

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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.