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Finding the Fourth Proportional to 519,685.96, 779,775.66 and 360,007.62

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Solution

The fourth proportional to 519,685.96, 779,775.66 and 360,007.62 is: 540,182.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,685.96 : 779,775.66 = 360,007.62 : x
  2. Step 2: Convert to fraction form
    519,685.96/779,775.66 = 360,007.62/x
  3. Step 3: Cross multiply
    519,685.96x = 779,775.66 × 360,007.62
  4. Step 4: Simplify right side
    519,685.96x = 280,725,179,490.53
  5. Step 5: Solve for x
    x = 280,725,179,490.53/519,685.96
  6. Step 6: Final answer
    x = 540,182.35

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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.