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Finding the Fourth Proportional to 652,058.20, 978,087.30 and 337,130.20

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Solution

The fourth proportional to 652,058.20, 978,087.30 and 337,130.20 is: 505,695.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,058.20 : 978,087.30 = 337,130.20 : x
  2. Step 2: Convert to fraction form
    652,058.20/978,087.30 = 337,130.20/x
  3. Step 3: Cross multiply
    652,058.20x = 978,087.30 × 337,130.20
  4. Step 4: Simplify right side
    652,058.20x = 329,742,767,066.46
  5. Step 5: Solve for x
    x = 329,742,767,066.46/652,058.20
  6. Step 6: Final answer
    x = 505,695.30

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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.