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Finding the Fourth Proportional to 551,712.20, 761,423.10 and 336,851.60

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Solution

The fourth proportional to 551,712.20, 761,423.10 and 336,851.60 is: 464,892.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,712.20 : 761,423.10 = 336,851.60 : x
  2. Step 2: Convert to fraction form
    551,712.20/761,423.10 = 336,851.60/x
  3. Step 3: Cross multiply
    551,712.20x = 761,423.10 × 336,851.60
  4. Step 4: Simplify right side
    551,712.20x = 256,486,589,511.96
  5. Step 5: Solve for x
    x = 256,486,589,511.96/551,712.20
  6. Step 6: Final answer
    x = 464,892.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.