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Finding the Fourth Proportional to 404,482.65, 560,545.89 and 398,774.58

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Solution

The fourth proportional to 404,482.65, 560,545.89 and 398,774.58 is: 552,635.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,482.65 : 560,545.89 = 398,774.58 : x
  2. Step 2: Convert to fraction form
    404,482.65/560,545.89 = 398,774.58/x
  3. Step 3: Cross multiply
    404,482.65x = 560,545.89 × 398,774.58
  4. Step 4: Simplify right side
    404,482.65x = 223,531,451,855.48
  5. Step 5: Solve for x
    x = 223,531,451,855.48/404,482.65
  6. Step 6: Final answer
    x = 552,635.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.