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Finding the Fourth Proportional to 627,849,793.80, 941,774,690.70 and 191,147,009.40

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Solution

The fourth proportional to 627,849,793.80, 941,774,690.70 and 191,147,009.40 is: 286,720,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,849,793.80 : 941,774,690.70 = 191,147,009.40 : x
  2. Step 2: Convert to fraction form
    627,849,793.80/941,774,690.70 = 191,147,009.40/x
  3. Step 3: Cross multiply
    627,849,793.80x = 941,774,690.70 × 191,147,009.40
  4. Step 4: Simplify right side
    627,849,793.80x = 180,017,415,655,915,008
  5. Step 5: Solve for x
    x = 180,017,415,655,915,008/627,849,793.80
  6. Step 6: Final answer
    x = 286,720,514.10

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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.