Home / 918,509.10-1,267,538.67-516,101.10

Finding the Fourth Proportional to 918,509.10, 1,267,538.67 and 516,101.10

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Solution

The fourth proportional to 918,509.10, 1,267,538.67 and 516,101.10 is: 712,217.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,509.10 : 1,267,538.67 = 516,101.10 : x
  2. Step 2: Convert to fraction form
    918,509.10/1,267,538.67 = 516,101.10/x
  3. Step 3: Cross multiply
    918,509.10x = 1,267,538.67 × 516,101.10
  4. Step 4: Simplify right side
    918,509.10x = 654,178,101,879.54
  5. Step 5: Solve for x
    x = 654,178,101,879.54/918,509.10
  6. Step 6: Final answer
    x = 712,217.33

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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.