Home / 395,225.46-592,932.51-128,986.47

Finding the Fourth Proportional to 395,225.46, 592,932.51 and 128,986.47

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Solution

The fourth proportional to 395,225.46, 592,932.51 and 128,986.47 is: 193,510.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,225.46 : 592,932.51 = 128,986.47 : x
  2. Step 2: Convert to fraction form
    395,225.46/592,932.51 = 128,986.47/x
  3. Step 3: Cross multiply
    395,225.46x = 592,932.51 × 128,986.47
  4. Step 4: Simplify right side
    395,225.46x = 76,480,271,413.14
  5. Step 5: Solve for x
    x = 76,480,271,413.14/395,225.46
  6. Step 6: Final answer
    x = 193,510.49

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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.