Home / 628,815.60-943,223.40-208,036.80

Finding the Fourth Proportional to 628,815.60, 943,223.40 and 208,036.80

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Solution

The fourth proportional to 628,815.60, 943,223.40 and 208,036.80 is: 312,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,815.60 : 943,223.40 = 208,036.80 : x
  2. Step 2: Convert to fraction form
    628,815.60/943,223.40 = 208,036.80/x
  3. Step 3: Cross multiply
    628,815.60x = 943,223.40 × 208,036.80
  4. Step 4: Simplify right side
    628,815.60x = 196,225,177,821.12
  5. Step 5: Solve for x
    x = 196,225,177,821.12/628,815.60
  6. Step 6: Final answer
    x = 312,055.20

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Similar ratio
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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.