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Finding the Fourth Proportional to 556,087.41, 767,401.56 and 301,439.16

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Solution

The fourth proportional to 556,087.41, 767,401.56 and 301,439.16 is: 415,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,087.41 : 767,401.56 = 301,439.16 : x
  2. Step 2: Convert to fraction form
    556,087.41/767,401.56 = 301,439.16/x
  3. Step 3: Cross multiply
    556,087.41x = 767,401.56 × 301,439.16
  4. Step 4: Simplify right side
    556,087.41x = 231,324,881,629.09
  5. Step 5: Solve for x
    x = 231,324,881,629.09/556,087.41
  6. Step 6: Final answer
    x = 415,986.55

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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.