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Finding the Fourth Proportional to 443,444.40, 665,058.60 and 127,868.40

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Solution

The fourth proportional to 443,444.40, 665,058.60 and 127,868.40 is: 191,771.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,444.40 : 665,058.60 = 127,868.40 : x
  2. Step 2: Convert to fraction form
    443,444.40/665,058.60 = 127,868.40/x
  3. Step 3: Cross multiply
    443,444.40x = 665,058.60 × 127,868.40
  4. Step 4: Simplify right side
    443,444.40x = 85,039,979,088.24
  5. Step 5: Solve for x
    x = 85,039,979,088.24/443,444.40
  6. Step 6: Final answer
    x = 191,771.46

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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.