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Finding the Fourth Proportional to 628,693.60, 943,040.40 and 229,201.60

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Solution

The fourth proportional to 628,693.60, 943,040.40 and 229,201.60 is: 343,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,693.60 : 943,040.40 = 229,201.60 : x
  2. Step 2: Convert to fraction form
    628,693.60/943,040.40 = 229,201.60/x
  3. Step 3: Cross multiply
    628,693.60x = 943,040.40 × 229,201.60
  4. Step 4: Simplify right side
    628,693.60x = 216,146,368,544.64
  5. Step 5: Solve for x
    x = 216,146,368,544.64/628,693.60
  6. Step 6: Final answer
    x = 343,802.40

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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.