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Finding the Fourth Proportional to 584,131,978.80, 876,197,968.20 and 169,607,998.80

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Solution

The fourth proportional to 584,131,978.80, 876,197,968.20 and 169,607,998.80 is: 254,411,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,131,978.80 : 876,197,968.20 = 169,607,998.80 : x
  2. Step 2: Convert to fraction form
    584,131,978.80/876,197,968.20 = 169,607,998.80/x
  3. Step 3: Cross multiply
    584,131,978.80x = 876,197,968.20 × 169,607,998.80
  4. Step 4: Simplify right side
    584,131,978.80x = 148,610,183,939,028,064
  5. Step 5: Solve for x
    x = 148,610,183,939,028,064/584,131,978.80
  6. Step 6: Final answer
    x = 254,411,998.20

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Double scale
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Similar ratio
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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.