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Finding the Fourth Proportional to 660,441.84, 911,418.84 and 373,955.76

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Solution

The fourth proportional to 660,441.84, 911,418.84 and 373,955.76 is: 516,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,441.84 : 911,418.84 = 373,955.76 : x
  2. Step 2: Convert to fraction form
    660,441.84/911,418.84 = 373,955.76/x
  3. Step 3: Cross multiply
    660,441.84x = 911,418.84 × 373,955.76
  4. Step 4: Simplify right side
    660,441.84x = 340,830,324,990.52
  5. Step 5: Solve for x
    x = 340,830,324,990.52/660,441.84
  6. Step 6: Final answer
    x = 516,064.10

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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.