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Finding the Fourth Proportional to 578,038.80, 867,058.20 and 532,419.60

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Solution

The fourth proportional to 578,038.80, 867,058.20 and 532,419.60 is: 798,629.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,038.80 : 867,058.20 = 532,419.60 : x
  2. Step 2: Convert to fraction form
    578,038.80/867,058.20 = 532,419.60/x
  3. Step 3: Cross multiply
    578,038.80x = 867,058.20 × 532,419.60
  4. Step 4: Simplify right side
    578,038.80x = 461,638,780,020.72
  5. Step 5: Solve for x
    x = 461,638,780,020.72/578,038.80
  6. Step 6: Final answer
    x = 798,629.40

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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.