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Finding the Fourth Proportional to 518,561.15, 777,841.52 and 163,602.95

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Solution

The fourth proportional to 518,561.15, 777,841.52 and 163,602.95 is: 245,404.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,561.15 : 777,841.52 = 163,602.95 : x
  2. Step 2: Convert to fraction form
    518,561.15/777,841.52 = 163,602.95/x
  3. Step 3: Cross multiply
    518,561.15x = 777,841.52 × 163,602.95
  4. Step 4: Simplify right side
    518,561.15x = 127,257,162,597.26
  5. Step 5: Solve for x
    x = 127,257,162,597.26/518,561.15
  6. Step 6: Final answer
    x = 245,404.35

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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.