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Finding the Fourth Proportional to 779,606.76, 1,169,410.18 and 188,630.76

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Solution

The fourth proportional to 779,606.76, 1,169,410.18 and 188,630.76 is: 282,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,606.76 : 1,169,410.18 = 188,630.76 : x
  2. Step 2: Convert to fraction form
    779,606.76/1,169,410.18 = 188,630.76/x
  3. Step 3: Cross multiply
    779,606.76x = 1,169,410.18 × 188,630.76
  4. Step 4: Simplify right side
    779,606.76x = 220,586,731,005.14
  5. Step 5: Solve for x
    x = 220,586,731,005.14/779,606.76
  6. Step 6: Final answer
    x = 282,946.15

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Double scale
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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.