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Finding the Fourth Proportional to 886,792.08, 1,330,384.86 and 255,656.64

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Solution

The fourth proportional to 886,792.08, 1,330,384.86 and 255,656.64 is: 383,541.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,792.08 : 1,330,384.86 = 255,656.64 : x
  2. Step 2: Convert to fraction form
    886,792.08/1,330,384.86 = 255,656.64/x
  3. Step 3: Cross multiply
    886,792.08x = 1,330,384.86 × 255,656.64
  4. Step 4: Simplify right side
    886,792.08x = 340,121,723,214.47
  5. Step 5: Solve for x
    x = 340,121,723,214.47/886,792.08
  6. Step 6: Final answer
    x = 383,541.68

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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.