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Finding the Fourth Proportional to 876,474, 1,209,536.28 and 474,066

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Solution

The fourth proportional to 876,474, 1,209,536.28 and 474,066 is: 654,212.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,474 : 1,209,536.28 = 474,066 : x
  2. Step 2: Convert to fraction form
    876,474/1,209,536.28 = 474,066/x
  3. Step 3: Cross multiply
    876,474x = 1,209,536.28 × 474,066
  4. Step 4: Simplify right side
    876,474x = 573,400,026,114.48
  5. Step 5: Solve for x
    x = 573,400,026,114.48/876,474
  6. Step 6: Final answer
    x = 654,212.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.