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Finding the Fourth Proportional to 346,522.74, 478,205.37 and 203,285.22

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Solution

The fourth proportional to 346,522.74, 478,205.37 and 203,285.22 is: 280,535.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,522.74 : 478,205.37 = 203,285.22 : x
  2. Step 2: Convert to fraction form
    346,522.74/478,205.37 = 203,285.22/x
  3. Step 3: Cross multiply
    346,522.74x = 478,205.37 × 203,285.22
  4. Step 4: Simplify right side
    346,522.74x = 97,212,083,845.63
  5. Step 5: Solve for x
    x = 97,212,083,845.63/346,522.74
  6. Step 6: Final answer
    x = 280,535.94

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1.5x scale

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.