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Finding the Fourth Proportional to 875,851,607.88, 1,208,545,203.15 and 531,954,810

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Solution

The fourth proportional to 875,851,607.88, 1,208,545,203.15 and 531,954,810 is: 734,018,671.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,851,607.88 : 1,208,545,203.15 = 531,954,810 : x
  2. Step 2: Convert to fraction form
    875,851,607.88/1,208,545,203.15 = 531,954,810/x
  3. Step 3: Cross multiply
    875,851,607.88x = 1,208,545,203.15 × 531,954,810
  4. Step 4: Simplify right side
    875,851,607.88x = 642,891,433,918,069,760
  5. Step 5: Solve for x
    x = 642,891,433,918,069,760/875,851,607.88
  6. Step 6: Final answer
    x = 734,018,671.81

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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.