Home / 719,255.05-992,574.04-392,571.05

Finding the Fourth Proportional to 719,255.05, 992,574.04 and 392,571.05

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Solution

The fourth proportional to 719,255.05, 992,574.04 and 392,571.05 is: 541,749.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,255.05 : 992,574.04 = 392,571.05 : x
  2. Step 2: Convert to fraction form
    719,255.05/992,574.04 = 392,571.05/x
  3. Step 3: Cross multiply
    719,255.05x = 992,574.04 × 392,571.05
  4. Step 4: Simplify right side
    719,255.05x = 389,655,833,085.54
  5. Step 5: Solve for x
    x = 389,655,833,085.54/719,255.05
  6. Step 6: Final answer
    x = 541,749.18

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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.