Home / 648,200.20-972,300.30-571,217.80

Finding the Fourth Proportional to 648,200.20, 972,300.30 and 571,217.80

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Solution

The fourth proportional to 648,200.20, 972,300.30 and 571,217.80 is: 856,826.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,200.20 : 972,300.30 = 571,217.80 : x
  2. Step 2: Convert to fraction form
    648,200.20/972,300.30 = 571,217.80/x
  3. Step 3: Cross multiply
    648,200.20x = 972,300.30 × 571,217.80
  4. Step 4: Simplify right side
    648,200.20x = 555,395,238,305.34
  5. Step 5: Solve for x
    x = 555,395,238,305.34/648,200.20
  6. Step 6: Final answer
    x = 856,826.70

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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.