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Finding the Fourth Proportional to 519,259.20, 778,888.80 and 294,532.80

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Solution

The fourth proportional to 519,259.20, 778,888.80 and 294,532.80 is: 441,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,259.20 : 778,888.80 = 294,532.80 : x
  2. Step 2: Convert to fraction form
    519,259.20/778,888.80 = 294,532.80/x
  3. Step 3: Cross multiply
    519,259.20x = 778,888.80 × 294,532.80
  4. Step 4: Simplify right side
    519,259.20x = 229,408,299,152.64
  5. Step 5: Solve for x
    x = 229,408,299,152.64/519,259.20
  6. Step 6: Final answer
    x = 441,799.20

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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.