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Finding the Fourth Proportional to 519,219.60, 778,570.20 and 238,419.60

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Solution

The fourth proportional to 519,219.60, 778,570.20 and 238,419.60 is: 357,510.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,219.60 : 778,570.20 = 238,419.60 : x
  2. Step 2: Convert to fraction form
    519,219.60/778,570.20 = 238,419.60/x
  3. Step 3: Cross multiply
    519,219.60x = 778,570.20 × 238,419.60
  4. Step 4: Simplify right side
    519,219.60x = 185,626,395,655.92
  5. Step 5: Solve for x
    x = 185,626,395,655.92/519,219.60
  6. Step 6: Final answer
    x = 357,510.38

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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.