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Finding the Fourth Proportional to 579,693.60, 869,540.40 and 558,698.40

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Solution

The fourth proportional to 579,693.60, 869,540.40 and 558,698.40 is: 838,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,693.60 : 869,540.40 = 558,698.40 : x
  2. Step 2: Convert to fraction form
    579,693.60/869,540.40 = 558,698.40/x
  3. Step 3: Cross multiply
    579,693.60x = 869,540.40 × 558,698.40
  4. Step 4: Simplify right side
    579,693.60x = 485,810,830,215.36
  5. Step 5: Solve for x
    x = 485,810,830,215.36/579,693.60
  6. Step 6: Final answer
    x = 838,047.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.