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Finding the Fourth Proportional to 675,025.80, 1,012,538.70 and 607,374.60

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Solution

The fourth proportional to 675,025.80, 1,012,538.70 and 607,374.60 is: 911,061.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,025.80 : 1,012,538.70 = 607,374.60 : x
  2. Step 2: Convert to fraction form
    675,025.80/1,012,538.70 = 607,374.60/x
  3. Step 3: Cross multiply
    675,025.80x = 1,012,538.70 × 607,374.60
  4. Step 4: Simplify right side
    675,025.80x = 614,990,287,897.02
  5. Step 5: Solve for x
    x = 614,990,287,897.02/675,025.80
  6. Step 6: Final answer
    x = 911,061.90

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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.