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Finding the Fourth Proportional to 908,547.20, 1,363,015.20 and 277,524.80

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Solution

The fourth proportional to 908,547.20, 1,363,015.20 and 277,524.80 is: 416,346.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,547.20 : 1,363,015.20 = 277,524.80 : x
  2. Step 2: Convert to fraction form
    908,547.20/1,363,015.20 = 277,524.80/x
  3. Step 3: Cross multiply
    908,547.20x = 1,363,015.20 × 277,524.80
  4. Step 4: Simplify right side
    908,547.20x = 378,270,520,776.96
  5. Step 5: Solve for x
    x = 378,270,520,776.96/908,547.20
  6. Step 6: Final answer
    x = 416,346.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.