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Finding the Fourth Proportional to 907,644.30, 1,361,320.65 and 276,411.30

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Solution

The fourth proportional to 907,644.30, 1,361,320.65 and 276,411.30 is: 414,572.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,644.30 : 1,361,320.65 = 276,411.30 : x
  2. Step 2: Convert to fraction form
    907,644.30/1,361,320.65 = 276,411.30/x
  3. Step 3: Cross multiply
    907,644.30x = 1,361,320.65 × 276,411.30
  4. Step 4: Simplify right side
    907,644.30x = 376,284,410,583.35
  5. Step 5: Solve for x
    x = 376,284,410,583.35/907,644.30
  6. Step 6: Final answer
    x = 414,572.55

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Double scale
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1.5x scale

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.