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Finding the Fourth Proportional to 503,874,663.92, 695,645,312.66 and 447,965,659.34

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Solution

The fourth proportional to 503,874,663.92, 695,645,312.66 and 447,965,659.34 is: 618,457,790.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,874,663.92 : 695,645,312.66 = 447,965,659.34 : x
  2. Step 2: Convert to fraction form
    503,874,663.92/695,645,312.66 = 447,965,659.34/x
  3. Step 3: Cross multiply
    503,874,663.92x = 695,645,312.66 × 447,965,659.34
  4. Step 4: Simplify right side
    503,874,663.92x = 311,625,211,152,517,312
  5. Step 5: Solve for x
    x = 311,625,211,152,517,312/503,874,663.92
  6. Step 6: Final answer
    x = 618,457,790.13

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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.