Home / 985,109.28-1,359,462.96-555,303.84

Finding the Fourth Proportional to 985,109.28, 1,359,462.96 and 555,303.84

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Solution

The fourth proportional to 985,109.28, 1,359,462.96 and 555,303.84 is: 766,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,109.28 : 1,359,462.96 = 555,303.84 : x
  2. Step 2: Convert to fraction form
    985,109.28/1,359,462.96 = 555,303.84/x
  3. Step 3: Cross multiply
    985,109.28x = 1,359,462.96 × 555,303.84
  4. Step 4: Simplify right side
    985,109.28x = 754,915,002,025.77
  5. Step 5: Solve for x
    x = 754,915,002,025.77/985,109.28
  6. Step 6: Final answer
    x = 766,326.15

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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.