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Finding the Fourth Proportional to 328,543.52, 453,362.80 and 185,338.76

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Solution

The fourth proportional to 328,543.52, 453,362.80 and 185,338.76 is: 255,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,543.52 : 453,362.80 = 185,338.76 : x
  2. Step 2: Convert to fraction form
    328,543.52/453,362.80 = 185,338.76/x
  3. Step 3: Cross multiply
    328,543.52x = 453,362.80 × 185,338.76
  4. Step 4: Simplify right side
    328,543.52x = 84,025,699,182.13
  5. Step 5: Solve for x
    x = 84,025,699,182.13/328,543.52
  6. Step 6: Final answer
    x = 255,752.11

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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.