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Finding the Fourth Proportional to 328,523.61, 453,361.95 and 185,283.21

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Solution

The fourth proportional to 328,523.61, 453,361.95 and 185,283.21 is: 255,690.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,523.61 : 453,361.95 = 185,283.21 : x
  2. Step 2: Convert to fraction form
    328,523.61/453,361.95 = 185,283.21/x
  3. Step 3: Cross multiply
    328,523.61x = 453,361.95 × 185,283.21
  4. Step 4: Simplify right side
    328,523.61x = 84,000,357,387.86
  5. Step 5: Solve for x
    x = 84,000,357,387.86/328,523.61
  6. Step 6: Final answer
    x = 255,690.47

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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.