Home / 1,101,840.17-1,520,539.40-618,405.31

Finding the Fourth Proportional to 1,101,840.17, 1,520,539.40 and 618,405.31

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Solution

The fourth proportional to 1,101,840.17, 1,520,539.40 and 618,405.31 is: 853,399.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,840.17 : 1,520,539.40 = 618,405.31 : x
  2. Step 2: Convert to fraction form
    1,101,840.17/1,520,539.40 = 618,405.31/x
  3. Step 3: Cross multiply
    1,101,840.17x = 1,520,539.40 × 618,405.31
  4. Step 4: Simplify right side
    1,101,840.17x = 940,309,639,024.21
  5. Step 5: Solve for x
    x = 940,309,639,024.21/1,101,840.17
  6. Step 6: Final answer
    x = 853,399.31

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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.