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Finding the Fourth Proportional to 384,726.10, 577,089.15 and 118,568.20

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Solution

The fourth proportional to 384,726.10, 577,089.15 and 118,568.20 is: 177,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,726.10 : 577,089.15 = 118,568.20 : x
  2. Step 2: Convert to fraction form
    384,726.10/577,089.15 = 118,568.20/x
  3. Step 3: Cross multiply
    384,726.10x = 577,089.15 × 118,568.20
  4. Step 4: Simplify right side
    384,726.10x = 68,424,421,755.03
  5. Step 5: Solve for x
    x = 68,424,421,755.03/384,726.10
  6. Step 6: Final answer
    x = 177,852.30

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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.