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Finding the Fourth Proportional to 573,088.68, 790,846.74 and 318,433.32

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Solution

The fourth proportional to 573,088.68, 790,846.74 and 318,433.32 is: 439,429.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,088.68 : 790,846.74 = 318,433.32 : x
  2. Step 2: Convert to fraction form
    573,088.68/790,846.74 = 318,433.32/x
  3. Step 3: Cross multiply
    573,088.68x = 790,846.74 × 318,433.32
  4. Step 4: Simplify right side
    573,088.68x = 251,831,953,029.38
  5. Step 5: Solve for x
    x = 251,831,953,029.38/573,088.68
  6. Step 6: Final answer
    x = 439,429.29

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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.