Home / 985,338.36-1,359,534.29-555,535.45

Finding the Fourth Proportional to 985,338.36, 1,359,534.29 and 555,535.45

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Solution

The fourth proportional to 985,338.36, 1,359,534.29 and 555,535.45 is: 766,507.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,338.36 : 1,359,534.29 = 555,535.45 : x
  2. Step 2: Convert to fraction form
    985,338.36/1,359,534.29 = 555,535.45/x
  3. Step 3: Cross multiply
    985,338.36x = 1,359,534.29 × 555,535.45
  4. Step 4: Simplify right side
    985,338.36x = 755,269,493,585.58
  5. Step 5: Solve for x
    x = 755,269,493,585.58/985,338.36
  6. Step 6: Final answer
    x = 766,507.75

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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.