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Finding the Fourth Proportional to 423,423.24, 584,302.20 and 251,348.40

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Solution

The fourth proportional to 423,423.24, 584,302.20 and 251,348.40 is: 346,847.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,423.24 : 584,302.20 = 251,348.40 : x
  2. Step 2: Convert to fraction form
    423,423.24/584,302.20 = 251,348.40/x
  3. Step 3: Cross multiply
    423,423.24x = 584,302.20 × 251,348.40
  4. Step 4: Simplify right side
    423,423.24x = 146,863,423,086.48
  5. Step 5: Solve for x
    x = 146,863,423,086.48/423,423.24
  6. Step 6: Final answer
    x = 346,847.81

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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.