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Finding the Fourth Proportional to 443,595.40, 665,393.10 and 163,076.20

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Solution

The fourth proportional to 443,595.40, 665,393.10 and 163,076.20 is: 244,614.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,595.40 : 665,393.10 = 163,076.20 : x
  2. Step 2: Convert to fraction form
    443,595.40/665,393.10 = 163,076.20/x
  3. Step 3: Cross multiply
    443,595.40x = 665,393.10 × 163,076.20
  4. Step 4: Simplify right side
    443,595.40x = 108,509,778,254.22
  5. Step 5: Solve for x
    x = 108,509,778,254.22/443,595.40
  6. Step 6: Final answer
    x = 244,614.30

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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.