Home / 1,669,356.10-2,303,715.54-905,409.73

Finding the Fourth Proportional to 1,669,356.10, 2,303,715.54 and 905,409.73

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Solution

The fourth proportional to 1,669,356.10, 2,303,715.54 and 905,409.73 is: 1,249,467.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669,356.10 : 2,303,715.54 = 905,409.73 : x
  2. Step 2: Convert to fraction form
    1,669,356.10/2,303,715.54 = 905,409.73/x
  3. Step 3: Cross multiply
    1,669,356.10x = 2,303,715.54 × 905,409.73
  4. Step 4: Simplify right side
    1,669,356.10x = 2,085,806,465,068.20
  5. Step 5: Solve for x
    x = 2,085,806,465,068.20/1,669,356.10
  6. Step 6: Final answer
    x = 1,249,467.66

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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.