Home / 445,739.16-614,970.45-254,617.23

Finding the Fourth Proportional to 445,739.16, 614,970.45 and 254,617.23

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Solution

The fourth proportional to 445,739.16, 614,970.45 and 254,617.23 is: 351,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,739.16 : 614,970.45 = 254,617.23 : x
  2. Step 2: Convert to fraction form
    445,739.16/614,970.45 = 254,617.23/x
  3. Step 3: Cross multiply
    445,739.16x = 614,970.45 × 254,617.23
  4. Step 4: Simplify right side
    445,739.16x = 156,582,072,510.85
  5. Step 5: Solve for x
    x = 156,582,072,510.85/445,739.16
  6. Step 6: Final answer
    x = 351,286.33

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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.