Home / 768,905.60-1,153,358.40-207,940.10

Finding the Fourth Proportional to 768,905.60, 1,153,358.40 and 207,940.10

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Solution

The fourth proportional to 768,905.60, 1,153,358.40 and 207,940.10 is: 311,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,905.60 : 1,153,358.40 = 207,940.10 : x
  2. Step 2: Convert to fraction form
    768,905.60/1,153,358.40 = 207,940.10/x
  3. Step 3: Cross multiply
    768,905.60x = 1,153,358.40 × 207,940.10
  4. Step 4: Simplify right side
    768,905.60x = 239,829,461,031.84
  5. Step 5: Solve for x
    x = 239,829,461,031.84/768,905.60
  6. Step 6: Final answer
    x = 311,910.15

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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.