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Finding the Fourth Proportional to 1,157,731.08, 1,736,764.74 and 359,076.95

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Solution

The fourth proportional to 1,157,731.08, 1,736,764.74 and 359,076.95 is: 538,667.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,731.08 : 1,736,764.74 = 359,076.95 : x
  2. Step 2: Convert to fraction form
    1,157,731.08/1,736,764.74 = 359,076.95/x
  3. Step 3: Cross multiply
    1,157,731.08x = 1,736,764.74 × 359,076.95
  4. Step 4: Simplify right side
    1,157,731.08x = 623,632,183,535.79
  5. Step 5: Solve for x
    x = 623,632,183,535.79/1,157,731.08
  6. Step 6: Final answer
    x = 538,667.57

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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.