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Finding the Fourth Proportional to 622,592.88, 859,129.56 and 350,646

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Solution

The fourth proportional to 622,592.88, 859,129.56 and 350,646 is: 483,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,592.88 : 859,129.56 = 350,646 : x
  2. Step 2: Convert to fraction form
    622,592.88/859,129.56 = 350,646/x
  3. Step 3: Cross multiply
    622,592.88x = 859,129.56 × 350,646
  4. Step 4: Simplify right side
    622,592.88x = 301,250,343,695.76
  5. Step 5: Solve for x
    x = 301,250,343,695.76/622,592.88
  6. Step 6: Final answer
    x = 483,864.10

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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.