Home / 638,827.92-881,586.72-352,355.76

Finding the Fourth Proportional to 638,827.92, 881,586.72 and 352,355.76

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Solution

The fourth proportional to 638,827.92, 881,586.72 and 352,355.76 is: 486,253.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,827.92 : 881,586.72 = 352,355.76 : x
  2. Step 2: Convert to fraction form
    638,827.92/881,586.72 = 352,355.76/x
  3. Step 3: Cross multiply
    638,827.92x = 881,586.72 × 352,355.76
  4. Step 4: Simplify right side
    638,827.92x = 310,632,158,731.51
  5. Step 5: Solve for x
    x = 310,632,158,731.51/638,827.92
  6. Step 6: Final answer
    x = 486,253.26

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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.