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Finding the Fourth Proportional to 556,275.18, 767,674.84 and 314,593.89

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Solution

The fourth proportional to 556,275.18, 767,674.84 and 314,593.89 is: 434,148.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,275.18 : 767,674.84 = 314,593.89 : x
  2. Step 2: Convert to fraction form
    556,275.18/767,674.84 = 314,593.89/x
  3. Step 3: Cross multiply
    556,275.18x = 767,674.84 × 314,593.89
  4. Step 4: Simplify right side
    556,275.18x = 241,505,814,170.73
  5. Step 5: Solve for x
    x = 241,505,814,170.73/556,275.18
  6. Step 6: Final answer
    x = 434,148.11

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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.