Home / 878,861.22-1,212,918.88-534,721.58

Finding the Fourth Proportional to 878,861.22, 1,212,918.88 and 534,721.58

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Solution

The fourth proportional to 878,861.22, 1,212,918.88 and 534,721.58 is: 737,970.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,861.22 : 1,212,918.88 = 534,721.58 : x
  2. Step 2: Convert to fraction form
    878,861.22/1,212,918.88 = 534,721.58/x
  3. Step 3: Cross multiply
    878,861.22x = 1,212,918.88 × 534,721.58
  4. Step 4: Simplify right side
    878,861.22x = 648,573,899,925.43
  5. Step 5: Solve for x
    x = 648,573,899,925.43/878,861.22
  6. Step 6: Final answer
    x = 737,970.78

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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.