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Finding the Fourth Proportional to 517,294,253.49, 714,799,863.62 and 368,356,802.43

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Solution

The fourth proportional to 517,294,253.49, 714,799,863.62 and 368,356,802.43 is: 508,997,326.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,294,253.49 : 714,799,863.62 = 368,356,802.43 : x
  2. Step 2: Convert to fraction form
    517,294,253.49/714,799,863.62 = 368,356,802.43/x
  3. Step 3: Cross multiply
    517,294,253.49x = 714,799,863.62 × 368,356,802.43
  4. Step 4: Simplify right side
    517,294,253.49x = 263,301,392,138,621,504
  5. Step 5: Solve for x
    x = 263,301,392,138,621,504/517,294,253.49
  6. Step 6: Final answer
    x = 508,997,326.69

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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.