Home / 639,867.27-882,999.93-353,381.19

Finding the Fourth Proportional to 639,867.27, 882,999.93 and 353,381.19

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Solution

The fourth proportional to 639,867.27, 882,999.93 and 353,381.19 is: 487,656.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,867.27 : 882,999.93 = 353,381.19 : x
  2. Step 2: Convert to fraction form
    639,867.27/882,999.93 = 353,381.19/x
  3. Step 3: Cross multiply
    639,867.27x = 882,999.93 × 353,381.19
  4. Step 4: Simplify right side
    639,867.27x = 312,035,566,033.32
  5. Step 5: Solve for x
    x = 312,035,566,033.32/639,867.27
  6. Step 6: Final answer
    x = 487,656.71

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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.