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Finding the Fourth Proportional to 328,574.13, 453,448.16 and 185,330.89

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Solution

The fourth proportional to 328,574.13, 453,448.16 and 185,330.89 is: 255,765.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,574.13 : 453,448.16 = 185,330.89 : x
  2. Step 2: Convert to fraction form
    328,574.13/453,448.16 = 185,330.89/x
  3. Step 3: Cross multiply
    328,574.13x = 453,448.16 × 185,330.89
  4. Step 4: Simplify right side
    328,574.13x = 84,037,951,061.66
  5. Step 5: Solve for x
    x = 84,037,951,061.66/328,574.13
  6. Step 6: Final answer
    x = 255,765.57

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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.