Home / 467,730.16-645,683.52-274,111.12

Finding the Fourth Proportional to 467,730.16, 645,683.52 and 274,111.12

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Solution

The fourth proportional to 467,730.16, 645,683.52 and 274,111.12 is: 378,399.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,730.16 : 645,683.52 = 274,111.12 : x
  2. Step 2: Convert to fraction form
    467,730.16/645,683.52 = 274,111.12/x
  3. Step 3: Cross multiply
    467,730.16x = 645,683.52 × 274,111.12
  4. Step 4: Simplify right side
    467,730.16x = 176,989,032,832.74
  5. Step 5: Solve for x
    x = 176,989,032,832.74/467,730.16
  6. Step 6: Final answer
    x = 378,399.87

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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.