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Finding the Fourth Proportional to 703,750.40, 971,305.56 and 401,944.40

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Solution

The fourth proportional to 703,750.40, 971,305.56 and 401,944.40 is: 554,757.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,750.40 : 971,305.56 = 401,944.40 : x
  2. Step 2: Convert to fraction form
    703,750.40/971,305.56 = 401,944.40/x
  3. Step 3: Cross multiply
    703,750.40x = 971,305.56 × 401,944.40
  4. Step 4: Simplify right side
    703,750.40x = 390,410,830,530.86
  5. Step 5: Solve for x
    x = 390,410,830,530.86/703,750.40
  6. Step 6: Final answer
    x = 554,757.53

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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.