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Finding the Fourth Proportional to 191,592,607.20, 287,388,910.80 and 191,592,607.20

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Solution

The fourth proportional to 191,592,607.20, 287,388,910.80 and 191,592,607.20 is: 287,388,910.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,592,607.20 : 287,388,910.80 = 191,592,607.20 : x
  2. Step 2: Convert to fraction form
    191,592,607.20/287,388,910.80 = 191,592,607.20/x
  3. Step 3: Cross multiply
    191,592,607.20x = 287,388,910.80 × 191,592,607.20
  4. Step 4: Simplify right side
    191,592,607.20x = 55,061,590,700,540,240
  5. Step 5: Solve for x
    x = 55,061,590,700,540,240/191,592,607.20
  6. Step 6: Final answer
    x = 287,388,910.80

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1.5x scale

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.