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Finding the Fourth Proportional to 614,493.84, 848,005.02 and 342,579

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Solution

The fourth proportional to 614,493.84, 848,005.02 and 342,579 is: 472,760.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,493.84 : 848,005.02 = 342,579 : x
  2. Step 2: Convert to fraction form
    614,493.84/848,005.02 = 342,579/x
  3. Step 3: Cross multiply
    614,493.84x = 848,005.02 × 342,579
  4. Step 4: Simplify right side
    614,493.84x = 290,508,711,746.58
  5. Step 5: Solve for x
    x = 290,508,711,746.58/614,493.84
  6. Step 6: Final answer
    x = 472,760.98

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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.