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Finding the Fourth Proportional to 292,499.97, 438,427.94 and 191,256.28

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Solution

The fourth proportional to 292,499.97, 438,427.94 and 191,256.28 is: 286,673.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,499.97 : 438,427.94 = 191,256.28 : x
  2. Step 2: Convert to fraction form
    292,499.97/438,427.94 = 191,256.28/x
  3. Step 3: Cross multiply
    292,499.97x = 438,427.94 × 191,256.28
  4. Step 4: Simplify right side
    292,499.97x = 83,852,094,800.11
  5. Step 5: Solve for x
    x = 83,852,094,800.11/292,499.97
  6. Step 6: Final answer
    x = 286,673.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.