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Finding the Fourth Proportional to 615,099.96, 848,838.06 and 346,827.96

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Solution

The fourth proportional to 615,099.96, 848,838.06 and 346,827.96 is: 478,622.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,099.96 : 848,838.06 = 346,827.96 : x
  2. Step 2: Convert to fraction form
    615,099.96/848,838.06 = 346,827.96/x
  3. Step 3: Cross multiply
    615,099.96x = 848,838.06 × 346,827.96
  4. Step 4: Simplify right side
    615,099.96x = 294,400,772,720.16
  5. Step 5: Solve for x
    x = 294,400,772,720.16/615,099.96
  6. Step 6: Final answer
    x = 478,622.65

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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.