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Finding the Fourth Proportional to 855,494,652, 1,180,552,069.80 and 484,208,711.76

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Solution

The fourth proportional to 855,494,652, 1,180,552,069.80 and 484,208,711.76 is: 668,190,731.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,494,652 : 1,180,552,069.80 = 484,208,711.76 : x
  2. Step 2: Convert to fraction form
    855,494,652/1,180,552,069.80 = 484,208,711.76/x
  3. Step 3: Cross multiply
    855,494,652x = 1,180,552,069.80 × 484,208,711.76
  4. Step 4: Simplify right side
    855,494,652x = 571,633,596,883,459,584
  5. Step 5: Solve for x
    x = 571,633,596,883,459,584/855,494,652
  6. Step 6: Final answer
    x = 668,190,731.00

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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.