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Finding the Fourth Proportional to 519,970.68, 779,952.42 and 145,994.04

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Solution

The fourth proportional to 519,970.68, 779,952.42 and 145,994.04 is: 218,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,970.68 : 779,952.42 = 145,994.04 : x
  2. Step 2: Convert to fraction form
    519,970.68/779,952.42 = 145,994.04/x
  3. Step 3: Cross multiply
    519,970.68x = 779,952.42 × 145,994.04
  4. Step 4: Simplify right side
    519,970.68x = 113,868,404,803.58
  5. Step 5: Solve for x
    x = 113,868,404,803.58/519,970.68
  6. Step 6: Final answer
    x = 218,990.05

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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.