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Finding the Fourth Proportional to 535,194.48, 738,452.76 and 308,708.76

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Solution

The fourth proportional to 535,194.48, 738,452.76 and 308,708.76 is: 425,951.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,194.48 : 738,452.76 = 308,708.76 : x
  2. Step 2: Convert to fraction form
    535,194.48/738,452.76 = 308,708.76/x
  3. Step 3: Cross multiply
    535,194.48x = 738,452.76 × 308,708.76
  4. Step 4: Simplify right side
    535,194.48x = 227,966,835,858.18
  5. Step 5: Solve for x
    x = 227,966,835,858.18/535,194.48
  6. Step 6: Final answer
    x = 425,951.40

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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.