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Finding the Fourth Proportional to 553,695.45, 777,273.15 and 553,695.45

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Solution

The fourth proportional to 553,695.45, 777,273.15 and 553,695.45 is: 777,273.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,695.45 : 777,273.15 = 553,695.45 : x
  2. Step 2: Convert to fraction form
    553,695.45/777,273.15 = 553,695.45/x
  3. Step 3: Cross multiply
    553,695.45x = 777,273.15 × 553,695.45
  4. Step 4: Simplify right side
    553,695.45x = 430,372,606,562.17
  5. Step 5: Solve for x
    x = 430,372,606,562.17/553,695.45
  6. Step 6: Final answer
    x = 777,273.15

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.