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Finding the Fourth Proportional to 572,954,231.80, 859,431,347.70 and 189,952,017.40

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Solution

The fourth proportional to 572,954,231.80, 859,431,347.70 and 189,952,017.40 is: 284,928,026.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,954,231.80 : 859,431,347.70 = 189,952,017.40 : x
  2. Step 2: Convert to fraction form
    572,954,231.80/859,431,347.70 = 189,952,017.40/x
  3. Step 3: Cross multiply
    572,954,231.80x = 859,431,347.70 × 189,952,017.40
  4. Step 4: Simplify right side
    572,954,231.80x = 163,250,718,312,415,872
  5. Step 5: Solve for x
    x = 163,250,718,312,415,872/572,954,231.80
  6. Step 6: Final answer
    x = 284,928,026.10

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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.