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Finding the Fourth Proportional to 908,792.10, 1,363,188.15 and 277,700.45

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Solution

The fourth proportional to 908,792.10, 1,363,188.15 and 277,700.45 is: 416,550.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,792.10 : 1,363,188.15 = 277,700.45 : x
  2. Step 2: Convert to fraction form
    908,792.10/1,363,188.15 = 277,700.45/x
  3. Step 3: Cross multiply
    908,792.10x = 1,363,188.15 × 277,700.45
  4. Step 4: Simplify right side
    908,792.10x = 378,557,955,873.73
  5. Step 5: Solve for x
    x = 378,557,955,873.73/908,792.10
  6. Step 6: Final answer
    x = 416,550.67

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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.