Home / 811,386.51-1,119,336.35-524,998.86

Finding the Fourth Proportional to 811,386.51, 1,119,336.35 and 524,998.86

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Solution

The fourth proportional to 811,386.51, 1,119,336.35 and 524,998.86 is: 724,254.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,386.51 : 1,119,336.35 = 524,998.86 : x
  2. Step 2: Convert to fraction form
    811,386.51/1,119,336.35 = 524,998.86/x
  3. Step 3: Cross multiply
    811,386.51x = 1,119,336.35 × 524,998.86
  4. Step 4: Simplify right side
    811,386.51x = 587,650,305,081.57
  5. Step 5: Solve for x
    x = 587,650,305,081.57/811,386.51
  6. Step 6: Final answer
    x = 724,254.47

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Double scale
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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.