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Finding the Fourth Proportional to 893,673.81, 1,233,272.08 and 485,774.92

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Solution

The fourth proportional to 893,673.81, 1,233,272.08 and 485,774.92 is: 670,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,673.81 : 1,233,272.08 = 485,774.92 : x
  2. Step 2: Convert to fraction form
    893,673.81/1,233,272.08 = 485,774.92/x
  3. Step 3: Cross multiply
    893,673.81x = 1,233,272.08 × 485,774.92
  4. Step 4: Simplify right side
    893,673.81x = 599,092,648,149.04
  5. Step 5: Solve for x
    x = 599,092,648,149.04/893,673.81
  6. Step 6: Final answer
    x = 670,370.60

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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.