Home / 514,528.20-771,792.30-159,578.10

Finding the Fourth Proportional to 514,528.20, 771,792.30 and 159,578.10

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Solution

The fourth proportional to 514,528.20, 771,792.30 and 159,578.10 is: 239,367.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,528.20 : 771,792.30 = 159,578.10 : x
  2. Step 2: Convert to fraction form
    514,528.20/771,792.30 = 159,578.10/x
  3. Step 3: Cross multiply
    514,528.20x = 771,792.30 × 159,578.10
  4. Step 4: Simplify right side
    514,528.20x = 123,161,148,828.63
  5. Step 5: Solve for x
    x = 123,161,148,828.63/514,528.20
  6. Step 6: Final answer
    x = 239,367.15

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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.