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Finding the Fourth Proportional to 560,155.50, 773,014.59 and 305,508.51

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Solution

The fourth proportional to 560,155.50, 773,014.59 and 305,508.51 is: 421,601.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,155.50 : 773,014.59 = 305,508.51 : x
  2. Step 2: Convert to fraction form
    560,155.50/773,014.59 = 305,508.51/x
  3. Step 3: Cross multiply
    560,155.50x = 773,014.59 × 305,508.51
  4. Step 4: Simplify right side
    560,155.50x = 236,162,535,599.16
  5. Step 5: Solve for x
    x = 236,162,535,599.16/560,155.50
  6. Step 6: Final answer
    x = 421,601.74

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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.