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Finding the Fourth Proportional to 552,397.68, 762,302.04 and 313,918.32

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Solution

The fourth proportional to 552,397.68, 762,302.04 and 313,918.32 is: 433,203.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,397.68 : 762,302.04 = 313,918.32 : x
  2. Step 2: Convert to fraction form
    552,397.68/762,302.04 = 313,918.32/x
  3. Step 3: Cross multiply
    552,397.68x = 762,302.04 × 313,918.32
  4. Step 4: Simplify right side
    552,397.68x = 239,300,575,729.37
  5. Step 5: Solve for x
    x = 239,300,575,729.37/552,397.68
  6. Step 6: Final answer
    x = 433,203.44

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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.