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Finding the Fourth Proportional to 504,807.01, 696,638.12 and 275,365.31

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Solution

The fourth proportional to 504,807.01, 696,638.12 and 275,365.31 is: 380,006.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,807.01 : 696,638.12 = 275,365.31 : x
  2. Step 2: Convert to fraction form
    504,807.01/696,638.12 = 275,365.31/x
  3. Step 3: Cross multiply
    504,807.01x = 696,638.12 × 275,365.31
  4. Step 4: Simplify right side
    504,807.01x = 191,829,971,446.50
  5. Step 5: Solve for x
    x = 191,829,971,446.50/504,807.01
  6. Step 6: Final answer
    x = 380,006.56

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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.