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Finding the Fourth Proportional to 519,050.60, 778,575.90 and 239,114.60

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Solution

The fourth proportional to 519,050.60, 778,575.90 and 239,114.60 is: 358,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,050.60 : 778,575.90 = 239,114.60 : x
  2. Step 2: Convert to fraction form
    519,050.60/778,575.90 = 239,114.60/x
  3. Step 3: Cross multiply
    519,050.60x = 778,575.90 × 239,114.60
  4. Step 4: Simplify right side
    519,050.60x = 186,168,864,898.14
  5. Step 5: Solve for x
    x = 186,168,864,898.14/519,050.60
  6. Step 6: Final answer
    x = 358,671.90

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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.