Home / 912,528.39-1,259,383.77-525,357.57

Finding the Fourth Proportional to 912,528.39, 1,259,383.77 and 525,357.57

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Solution

The fourth proportional to 912,528.39, 1,259,383.77 and 525,357.57 is: 725,047.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,528.39 : 1,259,383.77 = 525,357.57 : x
  2. Step 2: Convert to fraction form
    912,528.39/1,259,383.77 = 525,357.57/x
  3. Step 3: Cross multiply
    912,528.39x = 1,259,383.77 × 525,357.57
  4. Step 4: Simplify right side
    912,528.39x = 661,626,797,104.64
  5. Step 5: Solve for x
    x = 661,626,797,104.64/912,528.39
  6. Step 6: Final answer
    x = 725,047.90

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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.