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Finding the Fourth Proportional to 519,746.76, 779,620.14 and 125,762.76

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Solution

The fourth proportional to 519,746.76, 779,620.14 and 125,762.76 is: 188,644.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,746.76 : 779,620.14 = 125,762.76 : x
  2. Step 2: Convert to fraction form
    519,746.76/779,620.14 = 125,762.76/x
  3. Step 3: Cross multiply
    519,746.76x = 779,620.14 × 125,762.76
  4. Step 4: Simplify right side
    519,746.76x = 98,047,180,557.99
  5. Step 5: Solve for x
    x = 98,047,180,557.99/519,746.76
  6. Step 6: Final answer
    x = 188,644.14

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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.