Home / 865,626.93-1,298,462.58-410,111.51

Finding the Fourth Proportional to 865,626.93, 1,298,462.58 and 410,111.51

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Solution

The fourth proportional to 865,626.93, 1,298,462.58 and 410,111.51 is: 615,177.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,626.93 : 1,298,462.58 = 410,111.51 : x
  2. Step 2: Convert to fraction form
    865,626.93/1,298,462.58 = 410,111.51/x
  3. Step 3: Cross multiply
    865,626.93x = 1,298,462.58 × 410,111.51
  4. Step 4: Simplify right side
    865,626.93x = 532,514,452,608.45
  5. Step 5: Solve for x
    x = 532,514,452,608.45/865,626.93
  6. Step 6: Final answer
    x = 615,177.78

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1.5x scale

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.