Home / 830,336.80-1,245,505.20-546,901.60

Finding the Fourth Proportional to 830,336.80, 1,245,505.20 and 546,901.60

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Solution

The fourth proportional to 830,336.80, 1,245,505.20 and 546,901.60 is: 820,352.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,336.80 : 1,245,505.20 = 546,901.60 : x
  2. Step 2: Convert to fraction form
    830,336.80/1,245,505.20 = 546,901.60/x
  3. Step 3: Cross multiply
    830,336.80x = 1,245,505.20 × 546,901.60
  4. Step 4: Simplify right side
    830,336.80x = 681,168,786,688.32
  5. Step 5: Solve for x
    x = 681,168,786,688.32/830,336.80
  6. Step 6: Final answer
    x = 820,352.40

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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.