Home / 639,319.52-958,979.76-218,598.56

Finding the Fourth Proportional to 639,319.52, 958,979.76 and 218,598.56

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Solution

The fourth proportional to 639,319.52, 958,979.76 and 218,598.56 is: 327,898.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,319.52 : 958,979.76 = 218,598.56 : x
  2. Step 2: Convert to fraction form
    639,319.52/958,979.76 = 218,598.56/x
  3. Step 3: Cross multiply
    639,319.52x = 958,979.76 × 218,598.56
  4. Step 4: Simplify right side
    639,319.52x = 209,631,594,605.15
  5. Step 5: Solve for x
    x = 209,631,594,605.15/639,319.52
  6. Step 6: Final answer
    x = 327,898.00

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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.