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Finding the Fourth Proportional to 616,189.92, 850,364.64 and 340,550.16

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Solution

The fourth proportional to 616,189.92, 850,364.64 and 340,550.16 is: 469,971.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,189.92 : 850,364.64 = 340,550.16 : x
  2. Step 2: Convert to fraction form
    616,189.92/850,364.64 = 340,550.16/x
  3. Step 3: Cross multiply
    616,189.92x = 850,364.64 × 340,550.16
  4. Step 4: Simplify right side
    616,189.92x = 289,591,814,210.34
  5. Step 5: Solve for x
    x = 289,591,814,210.34/616,189.92
  6. Step 6: Final answer
    x = 469,971.68

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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.