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Finding the Fourth Proportional to 1,009,935, 1,393,710.33 and 557,226

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Solution

The fourth proportional to 1,009,935, 1,393,710.33 and 557,226 is: 768,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,935 : 1,393,710.33 = 557,226 : x
  2. Step 2: Convert to fraction form
    1,009,935/1,393,710.33 = 557,226/x
  3. Step 3: Cross multiply
    1,009,935x = 1,393,710.33 × 557,226
  4. Step 4: Simplify right side
    1,009,935x = 776,611,634,434.18
  5. Step 5: Solve for x
    x = 776,611,634,434.18/1,009,935
  6. Step 6: Final answer
    x = 768,971.90

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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.