Home / 389,998.40-583,831.20-232,145.60

Finding the Fourth Proportional to 389,998.40, 583,831.20 and 232,145.60

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Solution

The fourth proportional to 389,998.40, 583,831.20 and 232,145.60 is: 347,524.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,998.40 : 583,831.20 = 232,145.60 : x
  2. Step 2: Convert to fraction form
    389,998.40/583,831.20 = 232,145.60/x
  3. Step 3: Cross multiply
    389,998.40x = 583,831.20 × 232,145.60
  4. Step 4: Simplify right side
    389,998.40x = 135,533,844,222.72
  5. Step 5: Solve for x
    x = 135,533,844,222.72/389,998.40
  6. Step 6: Final answer
    x = 347,524.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.