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Finding the Fourth Proportional to 328,520.81, 453,358.52 and 185,280.51

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Solution

The fourth proportional to 328,520.81, 453,358.52 and 185,280.51 is: 255,686.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,520.81 : 453,358.52 = 185,280.51 : x
  2. Step 2: Convert to fraction form
    328,520.81/453,358.52 = 185,280.51/x
  3. Step 3: Cross multiply
    328,520.81x = 453,358.52 × 185,280.51
  4. Step 4: Simplify right side
    328,520.81x = 83,998,499,266.94
  5. Step 5: Solve for x
    x = 83,998,499,266.94/328,520.81
  6. Step 6: Final answer
    x = 255,686.99

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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.