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Finding the Fourth Proportional to 219,541.44, 329,312.16 and 53,328.32

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Solution

The fourth proportional to 219,541.44, 329,312.16 and 53,328.32 is: 79,992.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,541.44 : 329,312.16 = 53,328.32 : x
  2. Step 2: Convert to fraction form
    219,541.44/329,312.16 = 53,328.32/x
  3. Step 3: Cross multiply
    219,541.44x = 329,312.16 × 53,328.32
  4. Step 4: Simplify right side
    219,541.44x = 17,561,664,248.37
  5. Step 5: Solve for x
    x = 17,561,664,248.37/219,541.44
  6. Step 6: Final answer
    x = 79,992.48

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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.