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Finding the Fourth Proportional to 907,056.59, 1,360,781.72 and 275,954

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Solution

The fourth proportional to 907,056.59, 1,360,781.72 and 275,954 is: 413,990.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,056.59 : 1,360,781.72 = 275,954 : x
  2. Step 2: Convert to fraction form
    907,056.59/1,360,781.72 = 275,954/x
  3. Step 3: Cross multiply
    907,056.59x = 1,360,781.72 × 275,954
  4. Step 4: Simplify right side
    907,056.59x = 375,513,157,381.11
  5. Step 5: Solve for x
    x = 375,513,157,381.11/907,056.59
  6. Step 6: Final answer
    x = 413,990.88

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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.