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Finding the Fourth Proportional to 423,354, 584,207.36 and 251,279.44

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Solution

The fourth proportional to 423,354, 584,207.36 and 251,279.44 is: 346,753.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,354 : 584,207.36 = 251,279.44 : x
  2. Step 2: Convert to fraction form
    423,354/584,207.36 = 251,279.44/x
  3. Step 3: Cross multiply
    423,354x = 584,207.36 × 251,279.44
  4. Step 4: Simplify right side
    423,354x = 146,799,298,264.68
  5. Step 5: Solve for x
    x = 146,799,298,264.68/423,354
  6. Step 6: Final answer
    x = 346,753.07

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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.