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Finding the Fourth Proportional to 453,860.78, 626,332.53 and 249,930.67

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Solution

The fourth proportional to 453,860.78, 626,332.53 and 249,930.67 is: 344,906.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,860.78 : 626,332.53 = 249,930.67 : x
  2. Step 2: Convert to fraction form
    453,860.78/626,332.53 = 249,930.67/x
  3. Step 3: Cross multiply
    453,860.78x = 626,332.53 × 249,930.67
  4. Step 4: Simplify right side
    453,860.78x = 156,539,708,865.70
  5. Step 5: Solve for x
    x = 156,539,708,865.70/453,860.78
  6. Step 6: Final answer
    x = 344,906.89

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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.