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Finding the Fourth Proportional to 502,973.36, 753,991.32 and 345,276.08

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Solution

The fourth proportional to 502,973.36, 753,991.32 and 345,276.08 is: 517,592.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,973.36 : 753,991.32 = 345,276.08 : x
  2. Step 2: Convert to fraction form
    502,973.36/753,991.32 = 345,276.08/x
  3. Step 3: Cross multiply
    502,973.36x = 753,991.32 × 345,276.08
  4. Step 4: Simplify right side
    502,973.36x = 260,335,167,323.63
  5. Step 5: Solve for x
    x = 260,335,167,323.63/502,973.36
  6. Step 6: Final answer
    x = 517,592.36

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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.