Home / 719,454.02-992,820.52-397,157.19

Finding the Fourth Proportional to 719,454.02, 992,820.52 and 397,157.19

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Solution

The fourth proportional to 719,454.02, 992,820.52 and 397,157.19 is: 548,062.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,454.02 : 992,820.52 = 397,157.19 : x
  2. Step 2: Convert to fraction form
    719,454.02/992,820.52 = 397,157.19/x
  3. Step 3: Cross multiply
    719,454.02x = 992,820.52 × 397,157.19
  4. Step 4: Simplify right side
    719,454.02x = 394,305,808,021.52
  5. Step 5: Solve for x
    x = 394,305,808,021.52/719,454.02
  6. Step 6: Final answer
    x = 548,062.56

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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.