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Finding the Fourth Proportional to 533,362.70, 736,040.45 and 291,645.42

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Solution

The fourth proportional to 533,362.70, 736,040.45 and 291,645.42 is: 402,470.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,362.70 : 736,040.45 = 291,645.42 : x
  2. Step 2: Convert to fraction form
    533,362.70/736,040.45 = 291,645.42/x
  3. Step 3: Cross multiply
    533,362.70x = 736,040.45 × 291,645.42
  4. Step 4: Simplify right side
    533,362.70x = 214,662,824,719.01
  5. Step 5: Solve for x
    x = 214,662,824,719.01/533,362.70
  6. Step 6: Final answer
    x = 402,470.64

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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.