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Finding the Fourth Proportional to 400,866.95, 601,328.48 and 160,980.81

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Solution

The fourth proportional to 400,866.95, 601,328.48 and 160,980.81 is: 241,482.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,866.95 : 601,328.48 = 160,980.81 : x
  2. Step 2: Convert to fraction form
    400,866.95/601,328.48 = 160,980.81/x
  3. Step 3: Cross multiply
    400,866.95x = 601,328.48 × 160,980.81
  4. Step 4: Simplify right side
    400,866.95x = 96,802,344,981.56
  5. Step 5: Solve for x
    x = 96,802,344,981.56/400,866.95
  6. Step 6: Final answer
    x = 241,482.48

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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.