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Finding the Fourth Proportional to 432,080.40, 646,808.40 and 384,841.20

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Solution

The fourth proportional to 432,080.40, 646,808.40 and 384,841.20 is: 576,093.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,080.40 : 646,808.40 = 384,841.20 : x
  2. Step 2: Convert to fraction form
    432,080.40/646,808.40 = 384,841.20/x
  3. Step 3: Cross multiply
    432,080.40x = 646,808.40 × 384,841.20
  4. Step 4: Simplify right side
    432,080.40x = 248,918,520,826.08
  5. Step 5: Solve for x
    x = 248,918,520,826.08/432,080.40
  6. Step 6: Final answer
    x = 576,093.06

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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.