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Finding the Fourth Proportional to 384,722.10, 577,083.15 and 118,564.20

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Solution

The fourth proportional to 384,722.10, 577,083.15 and 118,564.20 is: 177,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,722.10 : 577,083.15 = 118,564.20 : x
  2. Step 2: Convert to fraction form
    384,722.10/577,083.15 = 118,564.20/x
  3. Step 3: Cross multiply
    384,722.10x = 577,083.15 × 118,564.20
  4. Step 4: Simplify right side
    384,722.10x = 68,421,402,013.23
  5. Step 5: Solve for x
    x = 68,421,402,013.23/384,722.10
  6. Step 6: Final answer
    x = 177,846.30

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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.