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Finding the Fourth Proportional to 340,551.84, 470,006.65 and 220,043.59

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Solution

The fourth proportional to 340,551.84, 470,006.65 and 220,043.59 is: 303,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,551.84 : 470,006.65 = 220,043.59 : x
  2. Step 2: Convert to fraction form
    340,551.84/470,006.65 = 220,043.59/x
  3. Step 3: Cross multiply
    340,551.84x = 470,006.65 × 220,043.59
  4. Step 4: Simplify right side
    340,551.84x = 103,421,949,689.91
  5. Step 5: Solve for x
    x = 103,421,949,689.91/340,551.84
  6. Step 6: Final answer
    x = 303,689.30

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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.