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Finding the Fourth Proportional to 579,416.80, 869,276.40 and 224,442.40

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Solution

The fourth proportional to 579,416.80, 869,276.40 and 224,442.40 is: 336,722.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,416.80 : 869,276.40 = 224,442.40 : x
  2. Step 2: Convert to fraction form
    579,416.80/869,276.40 = 224,442.40/x
  3. Step 3: Cross multiply
    579,416.80x = 869,276.40 × 224,442.40
  4. Step 4: Simplify right side
    579,416.80x = 195,102,481,479.36
  5. Step 5: Solve for x
    x = 195,102,481,479.36/579,416.80
  6. Step 6: Final answer
    x = 336,722.17

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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.