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Finding the Fourth Proportional to 518,967.36, 778,483.98 and 219,392.10

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Solution

The fourth proportional to 518,967.36, 778,483.98 and 219,392.10 is: 329,102.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,967.36 : 778,483.98 = 219,392.10 : x
  2. Step 2: Convert to fraction form
    518,967.36/778,483.98 = 219,392.10/x
  3. Step 3: Cross multiply
    518,967.36x = 778,483.98 × 219,392.10
  4. Step 4: Simplify right side
    518,967.36x = 170,793,235,188.56
  5. Step 5: Solve for x
    x = 170,793,235,188.56/518,967.36
  6. Step 6: Final answer
    x = 329,102.08

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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.