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Finding the Fourth Proportional to 554,844,685.52, 765,676,088.52 and 307,320,726.80

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Solution

The fourth proportional to 554,844,685.52, 765,676,088.52 and 307,320,726.80 is: 424,097,298.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,844,685.52 : 765,676,088.52 = 307,320,726.80 : x
  2. Step 2: Convert to fraction form
    554,844,685.52/765,676,088.52 = 307,320,726.80/x
  3. Step 3: Cross multiply
    554,844,685.52x = 765,676,088.52 × 307,320,726.80
  4. Step 4: Simplify right side
    554,844,685.52x = 235,308,132,017,347,552
  5. Step 5: Solve for x
    x = 235,308,132,017,347,552/554,844,685.52
  6. Step 6: Final answer
    x = 424,097,298.14

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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.