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Finding the Fourth Proportional to 556,444.45, 767,894.70 and 301,795.66

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Solution

The fourth proportional to 556,444.45, 767,894.70 and 301,795.66 is: 416,478.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,444.45 : 767,894.70 = 301,795.66 : x
  2. Step 2: Convert to fraction form
    556,444.45/767,894.70 = 301,795.66/x
  3. Step 3: Cross multiply
    556,444.45x = 767,894.70 × 301,795.66
  4. Step 4: Simplify right side
    556,444.45x = 231,747,287,797.00
  5. Step 5: Solve for x
    x = 231,747,287,797.00/556,444.45
  6. Step 6: Final answer
    x = 416,478.75

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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.