Home / 516,263.83-712,439.81-289,904.47

Finding the Fourth Proportional to 516,263.83, 712,439.81 and 289,904.47

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Solution

The fourth proportional to 516,263.83, 712,439.81 and 289,904.47 is: 400,065.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,263.83 : 712,439.81 = 289,904.47 : x
  2. Step 2: Convert to fraction form
    516,263.83/712,439.81 = 289,904.47/x
  3. Step 3: Cross multiply
    516,263.83x = 712,439.81 × 289,904.47
  4. Step 4: Simplify right side
    516,263.83x = 206,539,485,524.95
  5. Step 5: Solve for x
    x = 206,539,485,524.95/516,263.83
  6. Step 6: Final answer
    x = 400,065.77

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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.