Home / 863,678.98-1,191,835.39-471,188.57

Finding the Fourth Proportional to 863,678.98, 1,191,835.39 and 471,188.57

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Solution

The fourth proportional to 863,678.98, 1,191,835.39 and 471,188.57 is: 650,217.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,678.98 : 1,191,835.39 = 471,188.57 : x
  2. Step 2: Convert to fraction form
    863,678.98/1,191,835.39 = 471,188.57/x
  3. Step 3: Cross multiply
    863,678.98x = 1,191,835.39 × 471,188.57
  4. Step 4: Simplify right side
    863,678.98x = 561,579,211,513.08
  5. Step 5: Solve for x
    x = 561,579,211,513.08/863,678.98
  6. Step 6: Final answer
    x = 650,217.53

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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.