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Finding the Fourth Proportional to 528,776.28, 793,164.40 and 154,799.28

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Solution

The fourth proportional to 528,776.28, 793,164.40 and 154,799.28 is: 232,198.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,776.28 : 793,164.40 = 154,799.28 : x
  2. Step 2: Convert to fraction form
    528,776.28/793,164.40 = 154,799.28/x
  3. Step 3: Cross multiply
    528,776.28x = 793,164.40 × 154,799.28
  4. Step 4: Simplify right side
    528,776.28x = 122,781,278,041.63
  5. Step 5: Solve for x
    x = 122,781,278,041.63/528,776.28
  6. Step 6: Final answer
    x = 232,198.91

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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.