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Finding the Fourth Proportional to 293,886.10, 440,440.35 and 260,449.30

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Solution

The fourth proportional to 293,886.10, 440,440.35 and 260,449.30 is: 390,329.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,886.10 : 440,440.35 = 260,449.30 : x
  2. Step 2: Convert to fraction form
    293,886.10/440,440.35 = 260,449.30/x
  3. Step 3: Cross multiply
    293,886.10x = 440,440.35 × 260,449.30
  4. Step 4: Simplify right side
    293,886.10x = 114,712,380,849.26
  5. Step 5: Solve for x
    x = 114,712,380,849.26/293,886.10
  6. Step 6: Final answer
    x = 390,329.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.