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Finding the Fourth Proportional to 712,615,781.52, 1,068,661,485 and 246,158,498.16

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Solution

The fourth proportional to 712,615,781.52, 1,068,661,485 and 246,158,498.16 is: 369,147,180.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,615,781.52 : 1,068,661,485 = 246,158,498.16 : x
  2. Step 2: Convert to fraction form
    712,615,781.52/1,068,661,485 = 246,158,498.16/x
  3. Step 3: Cross multiply
    712,615,781.52x = 1,068,661,485 × 246,158,498.16
  4. Step 4: Simplify right side
    712,615,781.52x = 263,060,106,189,035,360
  5. Step 5: Solve for x
    x = 263,060,106,189,035,360/712,615,781.52
  6. Step 6: Final answer
    x = 369,147,180.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.