Home / 1,130,930.37-1,560,689.10-621,665.55

Finding the Fourth Proportional to 1,130,930.37, 1,560,689.10 and 621,665.55

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Solution

The fourth proportional to 1,130,930.37, 1,560,689.10 and 621,665.55 is: 857,901.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,930.37 : 1,560,689.10 = 621,665.55 : x
  2. Step 2: Convert to fraction form
    1,130,930.37/1,560,689.10 = 621,665.55/x
  3. Step 3: Cross multiply
    1,130,930.37x = 1,560,689.10 × 621,665.55
  4. Step 4: Simplify right side
    1,130,930.37x = 970,226,647,730.51
  5. Step 5: Solve for x
    x = 970,226,647,730.51/1,130,930.37
  6. Step 6: Final answer
    x = 857,901.31

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1.5x scale

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.