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Finding the Fourth Proportional to 521,996.09, 720,405.16 and 292,592.34

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Solution

The fourth proportional to 521,996.09, 720,405.16 and 292,592.34 is: 403,805.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,996.09 : 720,405.16 = 292,592.34 : x
  2. Step 2: Convert to fraction form
    521,996.09/720,405.16 = 292,592.34/x
  3. Step 3: Cross multiply
    521,996.09x = 720,405.16 × 292,592.34
  4. Step 4: Simplify right side
    521,996.09x = 210,785,030,780.99
  5. Step 5: Solve for x
    x = 210,785,030,780.99/521,996.09
  6. Step 6: Final answer
    x = 403,805.77

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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.