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Finding the Fourth Proportional to 573,095.56, 790,837.14 and 318,438.04

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Solution

The fourth proportional to 573,095.56, 790,837.14 and 318,438.04 is: 439,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,095.56 : 790,837.14 = 318,438.04 : x
  2. Step 2: Convert to fraction form
    573,095.56/790,837.14 = 318,438.04/x
  3. Step 3: Cross multiply
    573,095.56x = 790,837.14 × 318,438.04
  4. Step 4: Simplify right side
    573,095.56x = 251,832,628,820.81
  5. Step 5: Solve for x
    x = 251,832,628,820.81/573,095.56
  6. Step 6: Final answer
    x = 439,425.20

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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.