Home / 695,478,889.60-1,043,218,334.40-622,919,478.40

Finding the Fourth Proportional to 695,478,889.60, 1,043,218,334.40 and 622,919,478.40

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Solution

The fourth proportional to 695,478,889.60, 1,043,218,334.40 and 622,919,478.40 is: 934,379,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,478,889.60 : 1,043,218,334.40 = 622,919,478.40 : x
  2. Step 2: Convert to fraction form
    695,478,889.60/1,043,218,334.40 = 622,919,478.40/x
  3. Step 3: Cross multiply
    695,478,889.60x = 1,043,218,334.40 × 622,919,478.40
  4. Step 4: Simplify right side
    695,478,889.60x = 649,841,020,721,764,736
  5. Step 5: Solve for x
    x = 649,841,020,721,764,736/695,478,889.60
  6. Step 6: Final answer
    x = 934,379,217.60

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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.