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Finding the Fourth Proportional to 519,229.60, 778,844.40 and 239,293.60

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Solution

The fourth proportional to 519,229.60, 778,844.40 and 239,293.60 is: 358,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,229.60 : 778,844.40 = 239,293.60 : x
  2. Step 2: Convert to fraction form
    519,229.60/778,844.40 = 239,293.60/x
  3. Step 3: Cross multiply
    519,229.60x = 778,844.40 × 239,293.60
  4. Step 4: Simplify right side
    519,229.60x = 186,372,480,315.84
  5. Step 5: Solve for x
    x = 186,372,480,315.84/519,229.60
  6. Step 6: Final answer
    x = 358,940.40

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Double scale
Find fourth proportional to 519,230.60, 778,845.90 and 239,294.60
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.