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Finding the Fourth Proportional to 520,235.22, 780,415.36 and 183,206.22

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Solution

The fourth proportional to 520,235.22, 780,415.36 and 183,206.22 is: 274,831.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,235.22 : 780,415.36 = 183,206.22 : x
  2. Step 2: Convert to fraction form
    520,235.22/780,415.36 = 183,206.22/x
  3. Step 3: Cross multiply
    520,235.22x = 780,415.36 × 183,206.22
  4. Step 4: Simplify right side
    520,235.22x = 142,976,944,750.97
  5. Step 5: Solve for x
    x = 142,976,944,750.97/520,235.22
  6. Step 6: Final answer
    x = 274,831.34

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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.