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Finding the Fourth Proportional to 517,950,528.80, 776,925,793.20 and 517,950,528.80

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Solution

The fourth proportional to 517,950,528.80, 776,925,793.20 and 517,950,528.80 is: 776,925,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,950,528.80 : 776,925,793.20 = 517,950,528.80 : x
  2. Step 2: Convert to fraction form
    517,950,528.80/776,925,793.20 = 517,950,528.80/x
  3. Step 3: Cross multiply
    517,950,528.80x = 776,925,793.20 × 517,950,528.80
  4. Step 4: Simplify right side
    517,950,528.80x = 402,409,125,426,299,456
  5. Step 5: Solve for x
    x = 402,409,125,426,299,456/517,950,528.80
  6. Step 6: Final answer
    x = 776,925,793.20

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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.