Home / 861,503.68-1,188,848.64-479,520.64

Finding the Fourth Proportional to 861,503.68, 1,188,848.64 and 479,520.64

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Solution

The fourth proportional to 861,503.68, 1,188,848.64 and 479,520.64 is: 661,723.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,503.68 : 1,188,848.64 = 479,520.64 : x
  2. Step 2: Convert to fraction form
    861,503.68/1,188,848.64 = 479,520.64/x
  3. Step 3: Cross multiply
    861,503.68x = 1,188,848.64 × 479,520.64
  4. Step 4: Simplify right side
    861,503.68x = 570,077,460,715.93
  5. Step 5: Solve for x
    x = 570,077,460,715.93/861,503.68
  6. Step 6: Final answer
    x = 661,723.77

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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.