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Finding the Fourth Proportional to 328,571.52, 453,428.16 and 185,331.12

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Solution

The fourth proportional to 328,571.52, 453,428.16 and 185,331.12 is: 255,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,571.52 : 453,428.16 = 185,331.12 : x
  2. Step 2: Convert to fraction form
    328,571.52/453,428.16 = 185,331.12/x
  3. Step 3: Cross multiply
    328,571.52x = 453,428.16 × 185,331.12
  4. Step 4: Simplify right side
    328,571.52x = 84,034,348,732.34
  5. Step 5: Solve for x
    x = 84,034,348,732.34/328,571.52
  6. Step 6: Final answer
    x = 255,756.64

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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.