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Finding the Fourth Proportional to 451,644.72, 623,224.80 and 260,719.62

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Solution

The fourth proportional to 451,644.72, 623,224.80 and 260,719.62 is: 359,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,644.72 : 623,224.80 = 260,719.62 : x
  2. Step 2: Convert to fraction form
    451,644.72/623,224.80 = 260,719.62/x
  3. Step 3: Cross multiply
    451,644.72x = 623,224.80 × 260,719.62
  4. Step 4: Simplify right side
    451,644.72x = 162,486,933,030.58
  5. Step 5: Solve for x
    x = 162,486,933,030.58/451,644.72
  6. Step 6: Final answer
    x = 359,767.15

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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.