Home / 1,005,894.71-1,388,107.01-553,185.71

Finding the Fourth Proportional to 1,005,894.71, 1,388,107.01 and 553,185.71

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Solution

The fourth proportional to 1,005,894.71, 1,388,107.01 and 553,185.71 is: 763,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,894.71 : 1,388,107.01 = 553,185.71 : x
  2. Step 2: Convert to fraction form
    1,005,894.71/1,388,107.01 = 553,185.71/x
  3. Step 3: Cross multiply
    1,005,894.71x = 1,388,107.01 × 553,185.71
  4. Step 4: Simplify right side
    1,005,894.71x = 767,880,956,325.26
  5. Step 5: Solve for x
    x = 767,880,956,325.26/1,005,894.71
  6. Step 6: Final answer
    x = 763,381.05

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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.