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Finding the Fourth Proportional to 519,600.40, 779,254.80 and 164,723.20

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Solution

The fourth proportional to 519,600.40, 779,254.80 and 164,723.20 is: 247,038.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,600.40 : 779,254.80 = 164,723.20 : x
  2. Step 2: Convert to fraction form
    519,600.40/779,254.80 = 164,723.20/x
  3. Step 3: Cross multiply
    519,600.40x = 779,254.80 × 164,723.20
  4. Step 4: Simplify right side
    519,600.40x = 128,361,344,271.36
  5. Step 5: Solve for x
    x = 128,361,344,271.36/519,600.40
  6. Step 6: Final answer
    x = 247,038.58

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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.