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Finding the Fourth Proportional to 613,602,736.72, 846,774,362.62 and 345,681,783.76

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Solution

The fourth proportional to 613,602,736.72, 846,774,362.62 and 345,681,783.76 is: 477,042,318.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,602,736.72 : 846,774,362.62 = 345,681,783.76 : x
  2. Step 2: Convert to fraction form
    613,602,736.72/846,774,362.62 = 345,681,783.76/x
  3. Step 3: Cross multiply
    613,602,736.72x = 846,774,362.62 × 345,681,783.76
  4. Step 4: Simplify right side
    613,602,736.72x = 292,714,472,112,718,656
  5. Step 5: Solve for x
    x = 292,714,472,112,718,656/613,602,736.72
  6. Step 6: Final answer
    x = 477,042,318.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.