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Finding the Fourth Proportional to 219,220.70, 328,831.05 and 194,726.30

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Solution

The fourth proportional to 219,220.70, 328,831.05 and 194,726.30 is: 292,089.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,220.70 : 328,831.05 = 194,726.30 : x
  2. Step 2: Convert to fraction form
    219,220.70/328,831.05 = 194,726.30/x
  3. Step 3: Cross multiply
    219,220.70x = 328,831.05 × 194,726.30
  4. Step 4: Simplify right side
    219,220.70x = 64,032,053,691.62
  5. Step 5: Solve for x
    x = 64,032,053,691.62/219,220.70
  6. Step 6: Final answer
    x = 292,089.45

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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.