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Finding the Fourth Proportional to 518,501.06, 777,751.61 and 163,542.76

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Solution

The fourth proportional to 518,501.06, 777,751.61 and 163,542.76 is: 245,314.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,501.06 : 777,751.61 = 163,542.76 : x
  2. Step 2: Convert to fraction form
    518,501.06/777,751.61 = 163,542.76/x
  3. Step 3: Cross multiply
    518,501.06x = 777,751.61 × 163,542.76
  4. Step 4: Simplify right side
    518,501.06x = 127,195,643,915.41
  5. Step 5: Solve for x
    x = 127,195,643,915.41/518,501.06
  6. Step 6: Final answer
    x = 245,314.14

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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.