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Finding the Fourth Proportional to 423,401.96, 584,272.95 and 251,327.18

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Solution

The fourth proportional to 423,401.96, 584,272.95 and 251,327.18 is: 346,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,401.96 : 584,272.95 = 251,327.18 : x
  2. Step 2: Convert to fraction form
    423,401.96/584,272.95 = 251,327.18/x
  3. Step 3: Cross multiply
    423,401.96x = 584,272.95 × 251,327.18
  4. Step 4: Simplify right side
    423,401.96x = 146,843,673,391.99
  5. Step 5: Solve for x
    x = 146,843,673,391.99/423,401.96
  6. Step 6: Final answer
    x = 346,818.59

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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.