Home / 806,630.80-1,209,946.20-245,592.40

Finding the Fourth Proportional to 806,630.80, 1,209,946.20 and 245,592.40

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Solution

The fourth proportional to 806,630.80, 1,209,946.20 and 245,592.40 is: 368,388.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,630.80 : 1,209,946.20 = 245,592.40 : x
  2. Step 2: Convert to fraction form
    806,630.80/1,209,946.20 = 245,592.40/x
  3. Step 3: Cross multiply
    806,630.80x = 1,209,946.20 × 245,592.40
  4. Step 4: Simplify right side
    806,630.80x = 297,153,591,128.88
  5. Step 5: Solve for x
    x = 297,153,591,128.88/806,630.80
  6. Step 6: Final answer
    x = 368,388.60

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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.