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Finding the Fourth Proportional to 392,368.25, 541,632.74 and 265,216.07

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Solution

The fourth proportional to 392,368.25, 541,632.74 and 265,216.07 is: 366,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,368.25 : 541,632.74 = 265,216.07 : x
  2. Step 2: Convert to fraction form
    392,368.25/541,632.74 = 265,216.07/x
  3. Step 3: Cross multiply
    392,368.25x = 541,632.74 × 265,216.07
  4. Step 4: Simplify right side
    392,368.25x = 143,649,706,714.13
  5. Step 5: Solve for x
    x = 143,649,706,714.13/392,368.25
  6. Step 6: Final answer
    x = 366,109.40

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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.