Home / 778,800.60-1,168,200.90-621,336.60

Finding the Fourth Proportional to 778,800.60, 1,168,200.90 and 621,336.60

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Solution

The fourth proportional to 778,800.60, 1,168,200.90 and 621,336.60 is: 932,004.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,800.60 : 1,168,200.90 = 621,336.60 : x
  2. Step 2: Convert to fraction form
    778,800.60/1,168,200.90 = 621,336.60/x
  3. Step 3: Cross multiply
    778,800.60x = 1,168,200.90 × 621,336.60
  4. Step 4: Simplify right side
    778,800.60x = 725,845,975,322.94
  5. Step 5: Solve for x
    x = 725,845,975,322.94/778,800.60
  6. Step 6: Final answer
    x = 932,004.90

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Double scale
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Similar ratio
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1.5x scale

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.