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Finding the Fourth Proportional to 328,281.98, 453,402.60 and 220,665.11

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Solution

The fourth proportional to 328,281.98, 453,402.60 and 220,665.11 is: 304,768.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,281.98 : 453,402.60 = 220,665.11 : x
  2. Step 2: Convert to fraction form
    328,281.98/453,402.60 = 220,665.11/x
  3. Step 3: Cross multiply
    328,281.98x = 453,402.60 × 220,665.11
  4. Step 4: Simplify right side
    328,281.98x = 100,050,134,603.29
  5. Step 5: Solve for x
    x = 100,050,134,603.29/328,281.98
  6. Step 6: Final answer
    x = 304,768.89

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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.