Home / 861,010.08-1,291,502.16-387,360.96

Finding the Fourth Proportional to 861,010.08, 1,291,502.16 and 387,360.96

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Solution

The fourth proportional to 861,010.08, 1,291,502.16 and 387,360.96 is: 581,035.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,010.08 : 1,291,502.16 = 387,360.96 : x
  2. Step 2: Convert to fraction form
    861,010.08/1,291,502.16 = 387,360.96/x
  3. Step 3: Cross multiply
    861,010.08x = 1,291,502.16 × 387,360.96
  4. Step 4: Simplify right side
    861,010.08x = 500,277,516,539.67
  5. Step 5: Solve for x
    x = 500,277,516,539.67/861,010.08
  6. Step 6: Final answer
    x = 581,035.61

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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.