Home / 651,815.40-977,771.70-231,036.60

Finding the Fourth Proportional to 651,815.40, 977,771.70 and 231,036.60

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Solution

The fourth proportional to 651,815.40, 977,771.70 and 231,036.60 is: 346,572.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,815.40 : 977,771.70 = 231,036.60 : x
  2. Step 2: Convert to fraction form
    651,815.40/977,771.70 = 231,036.60/x
  3. Step 3: Cross multiply
    651,815.40x = 977,771.70 × 231,036.60
  4. Step 4: Simplify right side
    651,815.40x = 225,901,049,144.22
  5. Step 5: Solve for x
    x = 225,901,049,144.22/651,815.40
  6. Step 6: Final answer
    x = 346,572.13

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Double scale
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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.