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Finding the Fourth Proportional to 1,009,950, 1,393,760.16 and 557,270.16

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Solution

The fourth proportional to 1,009,950, 1,393,760.16 and 557,270.16 is: 769,048.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,950 : 1,393,760.16 = 557,270.16 : x
  2. Step 2: Convert to fraction form
    1,009,950/1,393,760.16 = 557,270.16/x
  3. Step 3: Cross multiply
    1,009,950x = 1,393,760.16 × 557,270.16
  4. Step 4: Simplify right side
    1,009,950x = 776,700,947,364.83
  5. Step 5: Solve for x
    x = 776,700,947,364.83/1,009,950
  6. Step 6: Final answer
    x = 769,048.91

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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.