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Finding the Fourth Proportional to 508,328.22, 762,497.81 and 153,345.32

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Solution

The fourth proportional to 508,328.22, 762,497.81 and 153,345.32 is: 230,019.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,328.22 : 762,497.81 = 153,345.32 : x
  2. Step 2: Convert to fraction form
    508,328.22/762,497.81 = 153,345.32/x
  3. Step 3: Cross multiply
    508,328.22x = 762,497.81 × 153,345.32
  4. Step 4: Simplify right side
    508,328.22x = 116,925,470,673.75
  5. Step 5: Solve for x
    x = 116,925,470,673.75/508,328.22
  6. Step 6: Final answer
    x = 230,019.63

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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.