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Finding the Fourth Proportional to 504,661.55, 696,430.95 and 275,218.31

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Solution

The fourth proportional to 504,661.55, 696,430.95 and 275,218.31 is: 379,800.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,661.55 : 696,430.95 = 275,218.31 : x
  2. Step 2: Convert to fraction form
    504,661.55/696,430.95 = 275,218.31/x
  3. Step 3: Cross multiply
    504,661.55x = 696,430.95 × 275,218.31
  4. Step 4: Simplify right side
    504,661.55x = 191,670,545,608.54
  5. Step 5: Solve for x
    x = 191,670,545,608.54/504,661.55
  6. Step 6: Final answer
    x = 379,800.18

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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.