Home / 1,138,033.50-1,570,467.88-621,776.30

Finding the Fourth Proportional to 1,138,033.50, 1,570,467.88 and 621,776.30

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Solution

The fourth proportional to 1,138,033.50, 1,570,467.88 and 621,776.30 is: 858,041.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,033.50 : 1,570,467.88 = 621,776.30 : x
  2. Step 2: Convert to fraction form
    1,138,033.50/1,570,467.88 = 621,776.30/x
  3. Step 3: Cross multiply
    1,138,033.50x = 1,570,467.88 × 621,776.30
  4. Step 4: Simplify right side
    1,138,033.50x = 976,479,707,695.24
  5. Step 5: Solve for x
    x = 976,479,707,695.24/1,138,033.50
  6. Step 6: Final answer
    x = 858,041.27

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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.