Home / 648,199.20-972,298.80-571,216.80

Finding the Fourth Proportional to 648,199.20, 972,298.80 and 571,216.80

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Solution

The fourth proportional to 648,199.20, 972,298.80 and 571,216.80 is: 856,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,199.20 : 972,298.80 = 571,216.80 : x
  2. Step 2: Convert to fraction form
    648,199.20/972,298.80 = 571,216.80/x
  3. Step 3: Cross multiply
    648,199.20x = 972,298.80 × 571,216.80
  4. Step 4: Simplify right side
    648,199.20x = 555,393,409,179.84
  5. Step 5: Solve for x
    x = 555,393,409,179.84/648,199.20
  6. Step 6: Final answer
    x = 856,825.20

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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.