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Finding the Fourth Proportional to 364,055.51, 502,398.94 and 202,920.78

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Solution

The fourth proportional to 364,055.51, 502,398.94 and 202,920.78 is: 280,031.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,055.51 : 502,398.94 = 202,920.78 : x
  2. Step 2: Convert to fraction form
    364,055.51/502,398.94 = 202,920.78/x
  3. Step 3: Cross multiply
    364,055.51x = 502,398.94 × 202,920.78
  4. Step 4: Simplify right side
    364,055.51x = 101,947,183,707.15
  5. Step 5: Solve for x
    x = 101,947,183,707.15/364,055.51
  6. Step 6: Final answer
    x = 280,031.97

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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.