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Finding the Fourth Proportional to 614,518.46, 848,039.18 and 342,603.63

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Solution

The fourth proportional to 614,518.46, 848,039.18 and 342,603.63 is: 472,795.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,518.46 : 848,039.18 = 342,603.63 : x
  2. Step 2: Convert to fraction form
    614,518.46/848,039.18 = 342,603.63/x
  3. Step 3: Cross multiply
    614,518.46x = 848,039.18 × 342,603.63
  4. Step 4: Simplify right side
    614,518.46x = 290,541,299,737.21
  5. Step 5: Solve for x
    x = 290,541,299,737.21/614,518.46
  6. Step 6: Final answer
    x = 472,795.07

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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.