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Finding the Fourth Proportional to 518,627.80, 778,051.05 and 163,677.70

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Solution

The fourth proportional to 518,627.80, 778,051.05 and 163,677.70 is: 245,551.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,627.80 : 778,051.05 = 163,677.70 : x
  2. Step 2: Convert to fraction form
    518,627.80/778,051.05 = 163,677.70/x
  3. Step 3: Cross multiply
    518,627.80x = 778,051.05 × 163,677.70
  4. Step 4: Simplify right side
    518,627.80x = 127,349,606,346.59
  5. Step 5: Solve for x
    x = 127,349,606,346.59/518,627.80
  6. Step 6: Final answer
    x = 245,551.06

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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.