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Finding the Fourth Proportional to 518,105.40, 776,927.70 and 237,708.60

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Solution

The fourth proportional to 518,105.40, 776,927.70 and 237,708.60 is: 356,457.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,105.40 : 776,927.70 = 237,708.60 : x
  2. Step 2: Convert to fraction form
    518,105.40/776,927.70 = 237,708.60/x
  3. Step 3: Cross multiply
    518,105.40x = 776,927.70 × 237,708.60
  4. Step 4: Simplify right side
    518,105.40x = 184,682,395,868.22
  5. Step 5: Solve for x
    x = 184,682,395,868.22/518,105.40
  6. Step 6: Final answer
    x = 356,457.19

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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.