Home / 513,147.11-708,141.24-286,792.61

Finding the Fourth Proportional to 513,147.11, 708,141.24 and 286,792.61

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Solution

The fourth proportional to 513,147.11, 708,141.24 and 286,792.61 is: 395,772.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,147.11 : 708,141.24 = 286,792.61 : x
  2. Step 2: Convert to fraction form
    513,147.11/708,141.24 = 286,792.61/x
  3. Step 3: Cross multiply
    513,147.11x = 708,141.24 × 286,792.61
  4. Step 4: Simplify right side
    513,147.11x = 203,089,676,955.57
  5. Step 5: Solve for x
    x = 203,089,676,955.57/513,147.11
  6. Step 6: Final answer
    x = 395,772.81

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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.