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Finding the Fourth Proportional to 605,070,712.80, 907,606,069.20 and 592,316,128.80

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Solution

The fourth proportional to 605,070,712.80, 907,606,069.20 and 592,316,128.80 is: 888,474,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,070,712.80 : 907,606,069.20 = 592,316,128.80 : x
  2. Step 2: Convert to fraction form
    605,070,712.80/907,606,069.20 = 592,316,128.80/x
  3. Step 3: Cross multiply
    605,070,712.80x = 907,606,069.20 × 592,316,128.80
  4. Step 4: Simplify right side
    605,070,712.80x = 537,589,713,383,928,896
  5. Step 5: Solve for x
    x = 537,589,713,383,928,896/605,070,712.80
  6. Step 6: Final answer
    x = 888,474,193.20

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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.