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Finding the Fourth Proportional to 518,114.40, 776,941.20 and 237,717.60

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Solution

The fourth proportional to 518,114.40, 776,941.20 and 237,717.60 is: 356,470.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,114.40 : 776,941.20 = 237,717.60 : x
  2. Step 2: Convert to fraction form
    518,114.40/776,941.20 = 237,717.60/x
  3. Step 3: Cross multiply
    518,114.40x = 776,941.20 × 237,717.60
  4. Step 4: Simplify right side
    518,114.40x = 184,692,597,405.12
  5. Step 5: Solve for x
    x = 184,692,597,405.12/518,114.40
  6. Step 6: Final answer
    x = 356,470.69

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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.