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Finding the Fourth Proportional to 518,829.60, 778,244.40 and 366,614.40

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Solution

The fourth proportional to 518,829.60, 778,244.40 and 366,614.40 is: 549,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,829.60 : 778,244.40 = 366,614.40 : x
  2. Step 2: Convert to fraction form
    518,829.60/778,244.40 = 366,614.40/x
  3. Step 3: Cross multiply
    518,829.60x = 778,244.40 × 366,614.40
  4. Step 4: Simplify right side
    518,829.60x = 285,315,603,759.36
  5. Step 5: Solve for x
    x = 285,315,603,759.36/518,829.60
  6. Step 6: Final answer
    x = 549,921.60

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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.