Home / 858,979.28-1,185,200.52-519,440.24

Finding the Fourth Proportional to 858,979.28, 1,185,200.52 and 519,440.24

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Solution

The fourth proportional to 858,979.28, 1,185,200.52 and 519,440.24 is: 716,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,979.28 : 1,185,200.52 = 519,440.24 : x
  2. Step 2: Convert to fraction form
    858,979.28/1,185,200.52 = 519,440.24/x
  3. Step 3: Cross multiply
    858,979.28x = 1,185,200.52 × 519,440.24
  4. Step 4: Simplify right side
    858,979.28x = 615,640,842,556.93
  5. Step 5: Solve for x
    x = 615,640,842,556.93/858,979.28
  6. Step 6: Final answer
    x = 716,712.10

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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.