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Finding the Fourth Proportional to 580,636.80, 870,955.20 and 248,246.40

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Solution

The fourth proportional to 580,636.80, 870,955.20 and 248,246.40 is: 372,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,636.80 : 870,955.20 = 248,246.40 : x
  2. Step 2: Convert to fraction form
    580,636.80/870,955.20 = 248,246.40/x
  3. Step 3: Cross multiply
    580,636.80x = 870,955.20 × 248,246.40
  4. Step 4: Simplify right side
    580,636.80x = 216,211,492,961.28
  5. Step 5: Solve for x
    x = 216,211,492,961.28/580,636.80
  6. Step 6: Final answer
    x = 372,369.60

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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.