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Finding the Fourth Proportional to 506,994.70, 760,489.98 and 127,916.32

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Solution

The fourth proportional to 506,994.70, 760,489.98 and 127,916.32 is: 191,873.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,994.70 : 760,489.98 = 127,916.32 : x
  2. Step 2: Convert to fraction form
    506,994.70/760,489.98 = 127,916.32/x
  3. Step 3: Cross multiply
    506,994.70x = 760,489.98 × 127,916.32
  4. Step 4: Simplify right side
    506,994.70x = 97,279,079,638.47
  5. Step 5: Solve for x
    x = 97,279,079,638.47/506,994.70
  6. Step 6: Final answer
    x = 191,873.96

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.