Home / 1,295,772.30-1,788,153.57-715,000.68

Finding the Fourth Proportional to 1,295,772.30, 1,788,153.57 and 715,000.68

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Solution

The fourth proportional to 1,295,772.30, 1,788,153.57 and 715,000.68 is: 986,694.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,772.30 : 1,788,153.57 = 715,000.68 : x
  2. Step 2: Convert to fraction form
    1,295,772.30/1,788,153.57 = 715,000.68/x
  3. Step 3: Cross multiply
    1,295,772.30x = 1,788,153.57 × 715,000.68
  4. Step 4: Simplify right side
    1,295,772.30x = 1,278,531,018,494.43
  5. Step 5: Solve for x
    x = 1,278,531,018,494.43/1,295,772.30
  6. Step 6: Final answer
    x = 986,694.20

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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.