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Finding the Fourth Proportional to 692,041.90, 955,016.50 and 386,100.08

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Solution

The fourth proportional to 692,041.90, 955,016.50 and 386,100.08 is: 532,817.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,041.90 : 955,016.50 = 386,100.08 : x
  2. Step 2: Convert to fraction form
    692,041.90/955,016.50 = 386,100.08/x
  3. Step 3: Cross multiply
    692,041.90x = 955,016.50 × 386,100.08
  4. Step 4: Simplify right side
    692,041.90x = 368,731,947,051.32
  5. Step 5: Solve for x
    x = 368,731,947,051.32/692,041.90
  6. Step 6: Final answer
    x = 532,817.37

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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.