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Finding the Fourth Proportional to 474,574.76, 655,218.84 and 423,499.66

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Solution

The fourth proportional to 474,574.76, 655,218.84 and 423,499.66 is: 584,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,574.76 : 655,218.84 = 423,499.66 : x
  2. Step 2: Convert to fraction form
    474,574.76/655,218.84 = 423,499.66/x
  3. Step 3: Cross multiply
    474,574.76x = 655,218.84 × 423,499.66
  4. Step 4: Simplify right side
    474,574.76x = 277,484,955,965.59
  5. Step 5: Solve for x
    x = 277,484,955,965.59/474,574.76
  6. Step 6: Final answer
    x = 584,702.30

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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.