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Finding the Fourth Proportional to 475,263.44, 710,285.89 and 347,448.79

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Solution

The fourth proportional to 475,263.44, 710,285.89 and 347,448.79 is: 519,265.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,263.44 : 710,285.89 = 347,448.79 : x
  2. Step 2: Convert to fraction form
    475,263.44/710,285.89 = 347,448.79/x
  3. Step 3: Cross multiply
    475,263.44x = 710,285.89 × 347,448.79
  4. Step 4: Simplify right side
    475,263.44x = 246,787,973,941.67
  5. Step 5: Solve for x
    x = 246,787,973,941.67/475,263.44
  6. Step 6: Final answer
    x = 519,265.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.