Home / 1,101,900.32-1,520,633.72-618,455.78

Finding the Fourth Proportional to 1,101,900.32, 1,520,633.72 and 618,455.78

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Solution

The fourth proportional to 1,101,900.32, 1,520,633.72 and 618,455.78 is: 853,475.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,900.32 : 1,520,633.72 = 618,455.78 : x
  2. Step 2: Convert to fraction form
    1,101,900.32/1,520,633.72 = 618,455.78/x
  3. Step 3: Cross multiply
    1,101,900.32x = 1,520,633.72 × 618,455.78
  4. Step 4: Simplify right side
    1,101,900.32x = 940,444,713,396.90
  5. Step 5: Solve for x
    x = 940,444,713,396.90/1,101,900.32
  6. Step 6: Final answer
    x = 853,475.31

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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.