Home / 742,218.61-1,023,629.92-516,403.57

Finding the Fourth Proportional to 742,218.61, 1,023,629.92 and 516,403.57

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Solution

The fourth proportional to 742,218.61, 1,023,629.92 and 516,403.57 is: 712,197.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,218.61 : 1,023,629.92 = 516,403.57 : x
  2. Step 2: Convert to fraction form
    742,218.61/1,023,629.92 = 516,403.57/x
  3. Step 3: Cross multiply
    742,218.61x = 1,023,629.92 × 516,403.57
  4. Step 4: Simplify right side
    742,218.61x = 528,606,145,046.81
  5. Step 5: Solve for x
    x = 528,606,145,046.81/742,218.61
  6. Step 6: Final answer
    x = 712,197.37

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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.