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Finding the Fourth Proportional to 518,322.40, 777,829.20 and 237,695.20

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Solution

The fourth proportional to 518,322.40, 777,829.20 and 237,695.20 is: 356,701.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,322.40 : 777,829.20 = 237,695.20 : x
  2. Step 2: Convert to fraction form
    518,322.40/777,829.20 = 237,695.20/x
  3. Step 3: Cross multiply
    518,322.40x = 777,829.20 × 237,695.20
  4. Step 4: Simplify right side
    518,322.40x = 184,886,267,259.84
  5. Step 5: Solve for x
    x = 184,886,267,259.84/518,322.40
  6. Step 6: Final answer
    x = 356,701.29

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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.