Home / 818,308.85-1,129,176.65-474,151.59

Finding the Fourth Proportional to 818,308.85, 1,129,176.65 and 474,151.59

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Solution

The fourth proportional to 818,308.85, 1,129,176.65 and 474,151.59 is: 654,277.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,308.85 : 1,129,176.65 = 474,151.59 : x
  2. Step 2: Convert to fraction form
    818,308.85/1,129,176.65 = 474,151.59/x
  3. Step 3: Cross multiply
    818,308.85x = 1,129,176.65 × 474,151.59
  4. Step 4: Simplify right side
    818,308.85x = 535,400,905,173.75
  5. Step 5: Solve for x
    x = 535,400,905,173.75/818,308.85
  6. Step 6: Final answer
    x = 654,277.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.