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Finding the Fourth Proportional to 713,755.15, 984,977.49 and 407,925.07

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Solution

The fourth proportional to 713,755.15, 984,977.49 and 407,925.07 is: 562,933.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,755.15 : 984,977.49 = 407,925.07 : x
  2. Step 2: Convert to fraction form
    713,755.15/984,977.49 = 407,925.07/x
  3. Step 3: Cross multiply
    713,755.15x = 984,977.49 × 407,925.07
  4. Step 4: Simplify right side
    713,755.15x = 401,797,011,556.67
  5. Step 5: Solve for x
    x = 401,797,011,556.67/713,755.15
  6. Step 6: Final answer
    x = 562,933.96

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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.