Home / 484,921.79-669,011.15-484,174.16

Finding the Fourth Proportional to 484,921.79, 669,011.15 and 484,174.16

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Solution

The fourth proportional to 484,921.79, 669,011.15 and 484,174.16 is: 667,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,921.79 : 669,011.15 = 484,174.16 : x
  2. Step 2: Convert to fraction form
    484,921.79/669,011.15 = 484,174.16/x
  3. Step 3: Cross multiply
    484,921.79x = 669,011.15 × 484,174.16
  4. Step 4: Simplify right side
    484,921.79x = 323,917,909,232.58
  5. Step 5: Solve for x
    x = 323,917,909,232.58/484,921.79
  6. Step 6: Final answer
    x = 667,979.70

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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.