Home / 639,520.74-882,541.44-353,043.18

Finding the Fourth Proportional to 639,520.74, 882,541.44 and 353,043.18

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Solution

The fourth proportional to 639,520.74, 882,541.44 and 353,043.18 is: 487,201.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,520.74 : 882,541.44 = 353,043.18 : x
  2. Step 2: Convert to fraction form
    639,520.74/882,541.44 = 353,043.18/x
  3. Step 3: Cross multiply
    639,520.74x = 882,541.44 × 353,043.18
  4. Step 4: Simplify right side
    639,520.74x = 311,575,236,459.38
  5. Step 5: Solve for x
    x = 311,575,236,459.38/639,520.74
  6. Step 6: Final answer
    x = 487,201.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.