Home / 1,328,557.60-1,992,836.40-529,427.80

Finding the Fourth Proportional to 1,328,557.60, 1,992,836.40 and 529,427.80

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Solution

The fourth proportional to 1,328,557.60, 1,992,836.40 and 529,427.80 is: 794,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,557.60 : 1,992,836.40 = 529,427.80 : x
  2. Step 2: Convert to fraction form
    1,328,557.60/1,992,836.40 = 529,427.80/x
  3. Step 3: Cross multiply
    1,328,557.60x = 1,992,836.40 × 529,427.80
  4. Step 4: Simplify right side
    1,328,557.60x = 1,055,062,991,011.92
  5. Step 5: Solve for x
    x = 1,055,062,991,011.92/1,328,557.60
  6. Step 6: Final answer
    x = 794,141.70

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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.