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Finding the Fourth Proportional to 328,654.17, 453,503.75 and 185,405.85

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Solution

The fourth proportional to 328,654.17, 453,503.75 and 185,405.85 is: 255,838.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,654.17 : 453,503.75 = 185,405.85 : x
  2. Step 2: Convert to fraction form
    328,654.17/453,503.75 = 185,405.85/x
  3. Step 3: Cross multiply
    328,654.17x = 453,503.75 × 185,405.85
  4. Step 4: Simplify right side
    328,654.17x = 84,082,247,319.91
  5. Step 5: Solve for x
    x = 84,082,247,319.91/328,654.17
  6. Step 6: Final answer
    x = 255,838.07

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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.