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Finding the Fourth Proportional to 472,392,473.70, 708,588,710.55 and 165,573,869.70

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Solution

The fourth proportional to 472,392,473.70, 708,588,710.55 and 165,573,869.70 is: 248,360,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,473.70 : 708,588,710.55 = 165,573,869.70 : x
  2. Step 2: Convert to fraction form
    472,392,473.70/708,588,710.55 = 165,573,869.70/x
  3. Step 3: Cross multiply
    472,392,473.70x = 708,588,710.55 × 165,573,869.70
  4. Step 4: Simplify right side
    472,392,473.70x = 117,323,774,831,496,704
  5. Step 5: Solve for x
    x = 117,323,774,831,496,704/472,392,473.70
  6. Step 6: Final answer
    x = 248,360,804.55

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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.