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Finding the Fourth Proportional to 755,670.80, 1,133,765.40 and 335,248.40

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Solution

The fourth proportional to 755,670.80, 1,133,765.40 and 335,248.40 is: 502,987.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,670.80 : 1,133,765.40 = 335,248.40 : x
  2. Step 2: Convert to fraction form
    755,670.80/1,133,765.40 = 335,248.40/x
  3. Step 3: Cross multiply
    755,670.80x = 1,133,765.40 × 335,248.40
  4. Step 4: Simplify right side
    755,670.80x = 380,093,036,325.36
  5. Step 5: Solve for x
    x = 380,093,036,325.36/755,670.80
  6. Step 6: Final answer
    x = 502,987.59

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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.