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Finding the Fourth Proportional to 453,307.76, 680,109.56 and 216,668.88

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Solution

The fourth proportional to 453,307.76, 680,109.56 and 216,668.88 is: 325,074.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,307.76 : 680,109.56 = 216,668.88 : x
  2. Step 2: Convert to fraction form
    453,307.76/680,109.56 = 216,668.88/x
  3. Step 3: Cross multiply
    453,307.76x = 680,109.56 × 216,668.88
  4. Step 4: Simplify right side
    453,307.76x = 147,358,576,642.49
  5. Step 5: Solve for x
    x = 147,358,576,642.49/453,307.76
  6. Step 6: Final answer
    x = 325,074.02

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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.