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Finding the Fourth Proportional to 444,384.54, 612,612.72 and 316,838.70

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Solution

The fourth proportional to 444,384.54, 612,612.72 and 316,838.70 is: 436,782.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,384.54 : 612,612.72 = 316,838.70 : x
  2. Step 2: Convert to fraction form
    444,384.54/612,612.72 = 316,838.70/x
  3. Step 3: Cross multiply
    444,384.54x = 612,612.72 × 316,838.70
  4. Step 4: Simplify right side
    444,384.54x = 194,099,417,808.26
  5. Step 5: Solve for x
    x = 194,099,417,808.26/444,384.54
  6. Step 6: Final answer
    x = 436,782.56

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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.