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Finding the Fourth Proportional to 319,223.60, 477,913.80 and 194,807.60

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Solution

The fourth proportional to 319,223.60, 477,913.80 and 194,807.60 is: 291,648.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,223.60 : 477,913.80 = 194,807.60 : x
  2. Step 2: Convert to fraction form
    319,223.60/477,913.80 = 194,807.60/x
  3. Step 3: Cross multiply
    319,223.60x = 477,913.80 × 194,807.60
  4. Step 4: Simplify right side
    319,223.60x = 93,101,240,384.88
  5. Step 5: Solve for x
    x = 93,101,240,384.88/319,223.60
  6. Step 6: Final answer
    x = 291,648.99

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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.