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Finding the Fourth Proportional to 768,707.44, 1,060,794.16 and 429,168.40

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Solution

The fourth proportional to 768,707.44, 1,060,794.16 and 429,168.40 is: 592,240.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,707.44 : 1,060,794.16 = 429,168.40 : x
  2. Step 2: Convert to fraction form
    768,707.44/1,060,794.16 = 429,168.40/x
  3. Step 3: Cross multiply
    768,707.44x = 1,060,794.16 × 429,168.40
  4. Step 4: Simplify right side
    768,707.44x = 455,259,332,376.54
  5. Step 5: Solve for x
    x = 455,259,332,376.54/768,707.44
  6. Step 6: Final answer
    x = 592,240.05

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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.