Home / 725,985.60-1,001,818.92-403,688.77

Finding the Fourth Proportional to 725,985.60, 1,001,818.92 and 403,688.77

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Solution

The fourth proportional to 725,985.60, 1,001,818.92 and 403,688.77 is: 557,067.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,985.60 : 1,001,818.92 = 403,688.77 : x
  2. Step 2: Convert to fraction form
    725,985.60/1,001,818.92 = 403,688.77/x
  3. Step 3: Cross multiply
    725,985.60x = 1,001,818.92 × 403,688.77
  4. Step 4: Simplify right side
    725,985.60x = 404,423,047,577.53
  5. Step 5: Solve for x
    x = 404,423,047,577.53/725,985.60
  6. Step 6: Final answer
    x = 557,067.59

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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.