Home / 910,404.60-1,365,606.90-611,806.20

Finding the Fourth Proportional to 910,404.60, 1,365,606.90 and 611,806.20

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Solution

The fourth proportional to 910,404.60, 1,365,606.90 and 611,806.20 is: 917,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,404.60 : 1,365,606.90 = 611,806.20 : x
  2. Step 2: Convert to fraction form
    910,404.60/1,365,606.90 = 611,806.20/x
  3. Step 3: Cross multiply
    910,404.60x = 1,365,606.90 × 611,806.20
  4. Step 4: Simplify right side
    910,404.60x = 835,486,768,182.78
  5. Step 5: Solve for x
    x = 835,486,768,182.78/910,404.60
  6. Step 6: Final answer
    x = 917,709.30

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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.