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Finding the Fourth Proportional to 328,333.53, 453,170.72 and 207,397.89

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Solution

The fourth proportional to 328,333.53, 453,170.72 and 207,397.89 is: 286,253.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,333.53 : 453,170.72 = 207,397.89 : x
  2. Step 2: Convert to fraction form
    328,333.53/453,170.72 = 207,397.89/x
  3. Step 3: Cross multiply
    328,333.53x = 453,170.72 × 207,397.89
  4. Step 4: Simplify right side
    328,333.53x = 93,986,651,137.78
  5. Step 5: Solve for x
    x = 93,986,651,137.78/328,333.53
  6. Step 6: Final answer
    x = 286,253.59

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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.