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Finding the Fourth Proportional to 516,352.56, 774,831.98 and 216,810.10

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Solution

The fourth proportional to 516,352.56, 774,831.98 and 216,810.10 is: 325,342.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,352.56 : 774,831.98 = 216,810.10 : x
  2. Step 2: Convert to fraction form
    516,352.56/774,831.98 = 216,810.10/x
  3. Step 3: Cross multiply
    516,352.56x = 774,831.98 × 216,810.10
  4. Step 4: Simplify right side
    516,352.56x = 167,991,399,067.00
  5. Step 5: Solve for x
    x = 167,991,399,067.00/516,352.56
  6. Step 6: Final answer
    x = 325,342.43

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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.