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Finding the Fourth Proportional to 614,902.50, 848,565.45 and 346,630.50

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Solution

The fourth proportional to 614,902.50, 848,565.45 and 346,630.50 is: 478,350.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,902.50 : 848,565.45 = 346,630.50 : x
  2. Step 2: Convert to fraction form
    614,902.50/848,565.45 = 346,630.50/x
  3. Step 3: Cross multiply
    614,902.50x = 848,565.45 × 346,630.50
  4. Step 4: Simplify right side
    614,902.50x = 294,138,666,216.23
  5. Step 5: Solve for x
    x = 294,138,666,216.23/614,902.50
  6. Step 6: Final answer
    x = 478,350.09

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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.