Home / 825,654.44-1,139,335.80-463,028.78

Finding the Fourth Proportional to 825,654.44, 1,139,335.80 and 463,028.78

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Solution

The fourth proportional to 825,654.44, 1,139,335.80 and 463,028.78 is: 638,941.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,654.44 : 1,139,335.80 = 463,028.78 : x
  2. Step 2: Convert to fraction form
    825,654.44/1,139,335.80 = 463,028.78/x
  3. Step 3: Cross multiply
    825,654.44x = 1,139,335.80 × 463,028.78
  4. Step 4: Simplify right side
    825,654.44x = 527,545,265,484.32
  5. Step 5: Solve for x
    x = 527,545,265,484.32/825,654.44
  6. Step 6: Final answer
    x = 638,941.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.