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Finding the Fourth Proportional to 922,778.60, 1,273,346.06 and 560,400.93

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Solution

The fourth proportional to 922,778.60, 1,273,346.06 and 560,400.93 is: 773,299.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,778.60 : 1,273,346.06 = 560,400.93 : x
  2. Step 2: Convert to fraction form
    922,778.60/1,273,346.06 = 560,400.93/x
  3. Step 3: Cross multiply
    922,778.60x = 1,273,346.06 × 560,400.93
  4. Step 4: Simplify right side
    922,778.60x = 713,584,313,433.83
  5. Step 5: Solve for x
    x = 713,584,313,433.83/922,778.60
  6. Step 6: Final answer
    x = 773,299.59

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1.5x scale

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.