Home / 930,400.76-1,283,949.42-522,445.88

Finding the Fourth Proportional to 930,400.76, 1,283,949.42 and 522,445.88

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Solution

The fourth proportional to 930,400.76, 1,283,949.42 and 522,445.88 is: 720,973.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,400.76 : 1,283,949.42 = 522,445.88 : x
  2. Step 2: Convert to fraction form
    930,400.76/1,283,949.42 = 522,445.88/x
  3. Step 3: Cross multiply
    930,400.76x = 1,283,949.42 × 522,445.88
  4. Step 4: Simplify right side
    930,400.76x = 670,794,084,607.39
  5. Step 5: Solve for x
    x = 670,794,084,607.39/930,400.76
  6. Step 6: Final answer
    x = 720,973.28

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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.