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Finding the Fourth Proportional to 502,483.50, 693,427.23 and 276,129

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Solution

The fourth proportional to 502,483.50, 693,427.23 and 276,129 is: 381,058.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,483.50 : 693,427.23 = 276,129 : x
  2. Step 2: Convert to fraction form
    502,483.50/693,427.23 = 276,129/x
  3. Step 3: Cross multiply
    502,483.50x = 693,427.23 × 276,129
  4. Step 4: Simplify right side
    502,483.50x = 191,475,367,592.67
  5. Step 5: Solve for x
    x = 191,475,367,592.67/502,483.50
  6. Step 6: Final answer
    x = 381,058.02

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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.