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Finding the Fourth Proportional to 330,187.79, 455,740.73 and 187,032.24

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Solution

The fourth proportional to 330,187.79, 455,740.73 and 187,032.24 is: 258,150.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,187.79 : 455,740.73 = 187,032.24 : x
  2. Step 2: Convert to fraction form
    330,187.79/455,740.73 = 187,032.24/x
  3. Step 3: Cross multiply
    330,187.79x = 455,740.73 × 187,032.24
  4. Step 4: Simplify right side
    330,187.79x = 85,238,209,357.34
  5. Step 5: Solve for x
    x = 85,238,209,357.34/330,187.79
  6. Step 6: Final answer
    x = 258,150.70

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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.