Home / 1,005,863.58-1,388,064.06-553,154.58

Finding the Fourth Proportional to 1,005,863.58, 1,388,064.06 and 553,154.58

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Solution

The fourth proportional to 1,005,863.58, 1,388,064.06 and 553,154.58 is: 763,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,863.58 : 1,388,064.06 = 553,154.58 : x
  2. Step 2: Convert to fraction form
    1,005,863.58/1,388,064.06 = 553,154.58/x
  3. Step 3: Cross multiply
    1,005,863.58x = 1,388,064.06 × 553,154.58
  4. Step 4: Simplify right side
    1,005,863.58x = 767,813,992,122.40
  5. Step 5: Solve for x
    x = 767,813,992,122.40/1,005,863.58
  6. Step 6: Final answer
    x = 763,338.10

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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.