Home / 930,721.86-1,284,401.34-522,840.96

Finding the Fourth Proportional to 930,721.86, 1,284,401.34 and 522,840.96

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Solution

The fourth proportional to 930,721.86, 1,284,401.34 and 522,840.96 is: 721,523.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,721.86 : 1,284,401.34 = 522,840.96 : x
  2. Step 2: Convert to fraction form
    930,721.86/1,284,401.34 = 522,840.96/x
  3. Step 3: Cross multiply
    930,721.86x = 1,284,401.34 × 522,840.96
  4. Step 4: Simplify right side
    930,721.86x = 671,537,629,630.89
  5. Step 5: Solve for x
    x = 671,537,629,630.89/930,721.86
  6. Step 6: Final answer
    x = 721,523.43

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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.