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Finding the Fourth Proportional to 556,334.28, 767,741.28 and 301,686.06

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Solution

The fourth proportional to 556,334.28, 767,741.28 and 301,686.06 is: 416,326.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,334.28 : 767,741.28 = 301,686.06 : x
  2. Step 2: Convert to fraction form
    556,334.28/767,741.28 = 301,686.06/x
  3. Step 3: Cross multiply
    556,334.28x = 767,741.28 × 301,686.06
  4. Step 4: Simplify right side
    556,334.28x = 231,616,841,862.56
  5. Step 5: Solve for x
    x = 231,616,841,862.56/556,334.28
  6. Step 6: Final answer
    x = 416,326.75

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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.