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Finding the Fourth Proportional to 660,583.65, 911,574.97 and 374,105.82

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Solution

The fourth proportional to 660,583.65, 911,574.97 and 374,105.82 is: 516,248.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,583.65 : 911,574.97 = 374,105.82 : x
  2. Step 2: Convert to fraction form
    660,583.65/911,574.97 = 374,105.82/x
  3. Step 3: Cross multiply
    660,583.65x = 911,574.97 × 374,105.82
  4. Step 4: Simplify right side
    660,583.65x = 341,025,501,643.33
  5. Step 5: Solve for x
    x = 341,025,501,643.33/660,583.65
  6. Step 6: Final answer
    x = 516,248.78

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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.