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Finding the Fourth Proportional to 908,698.60, 1,363,047.90 and 277,530.40

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Solution

The fourth proportional to 908,698.60, 1,363,047.90 and 277,530.40 is: 416,295.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,698.60 : 1,363,047.90 = 277,530.40 : x
  2. Step 2: Convert to fraction form
    908,698.60/1,363,047.90 = 277,530.40/x
  3. Step 3: Cross multiply
    908,698.60x = 1,363,047.90 × 277,530.40
  4. Step 4: Simplify right side
    908,698.60x = 378,287,228,906.16
  5. Step 5: Solve for x
    x = 378,287,228,906.16/908,698.60
  6. Step 6: Final answer
    x = 416,295.60

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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.