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Finding the Fourth Proportional to 511,289,350.80, 766,934,026.20 and 511,289,350.80

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Solution

The fourth proportional to 511,289,350.80, 766,934,026.20 and 511,289,350.80 is: 766,934,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,289,350.80 : 766,934,026.20 = 511,289,350.80 : x
  2. Step 2: Convert to fraction form
    511,289,350.80/766,934,026.20 = 511,289,350.80/x
  3. Step 3: Cross multiply
    511,289,350.80x = 766,934,026.20 × 511,289,350.80
  4. Step 4: Simplify right side
    511,289,350.80x = 392,125,200,362,228,224
  5. Step 5: Solve for x
    x = 392,125,200,362,228,224/511,289,350.80
  6. Step 6: Final answer
    x = 766,934,026.20

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Double scale
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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.