Home / 656,864.40-985,296.60-630,620.40

Finding the Fourth Proportional to 656,864.40, 985,296.60 and 630,620.40

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Solution

The fourth proportional to 656,864.40, 985,296.60 and 630,620.40 is: 945,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,864.40 : 985,296.60 = 630,620.40 : x
  2. Step 2: Convert to fraction form
    656,864.40/985,296.60 = 630,620.40/x
  3. Step 3: Cross multiply
    656,864.40x = 985,296.60 × 630,620.40
  4. Step 4: Simplify right side
    656,864.40x = 621,348,136,010.64
  5. Step 5: Solve for x
    x = 621,348,136,010.64/656,864.40
  6. Step 6: Final answer
    x = 945,930.60

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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.