Home / 516,235.07-712,117.27-479,701.64

Finding the Fourth Proportional to 516,235.07, 712,117.27 and 479,701.64

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Solution

The fourth proportional to 516,235.07, 712,117.27 and 479,701.64 is: 661,721.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,235.07 : 712,117.27 = 479,701.64 : x
  2. Step 2: Convert to fraction form
    516,235.07/712,117.27 = 479,701.64/x
  3. Step 3: Cross multiply
    516,235.07x = 712,117.27 × 479,701.64
  4. Step 4: Simplify right side
    516,235.07x = 341,603,824,671.24
  5. Step 5: Solve for x
    x = 341,603,824,671.24/516,235.07
  6. Step 6: Final answer
    x = 661,721.46

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Double scale
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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.