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Finding the Fourth Proportional to 1,034,945.60, 1,552,418.40 and 977,208.80

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Solution

The fourth proportional to 1,034,945.60, 1,552,418.40 and 977,208.80 is: 1,465,813.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034,945.60 : 1,552,418.40 = 977,208.80 : x
  2. Step 2: Convert to fraction form
    1,034,945.60/1,552,418.40 = 977,208.80/x
  3. Step 3: Cross multiply
    1,034,945.60x = 1,552,418.40 × 977,208.80
  4. Step 4: Simplify right side
    1,034,945.60x = 1,517,036,921,761.92
  5. Step 5: Solve for x
    x = 1,517,036,921,761.92/1,034,945.60
  6. Step 6: Final answer
    x = 1,465,813.20

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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.