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Finding the Fourth Proportional to 893,757.69, 1,233,393.64 and 485,860.32

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Solution

The fourth proportional to 893,757.69, 1,233,393.64 and 485,860.32 is: 670,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,757.69 : 1,233,393.64 = 485,860.32 : x
  2. Step 2: Convert to fraction form
    893,757.69/1,233,393.64 = 485,860.32/x
  3. Step 3: Cross multiply
    893,757.69x = 1,233,393.64 × 485,860.32
  4. Step 4: Simplify right side
    893,757.69x = 599,257,027,401.71
  5. Step 5: Solve for x
    x = 599,257,027,401.71/893,757.69
  6. Step 6: Final answer
    x = 670,491.60

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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.