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Finding the Fourth Proportional to 662,743.74, 914,598.54 and 368,421.14

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Solution

The fourth proportional to 662,743.74, 914,598.54 and 368,421.14 is: 508,427.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,743.74 : 914,598.54 = 368,421.14 : x
  2. Step 2: Convert to fraction form
    662,743.74/914,598.54 = 368,421.14/x
  3. Step 3: Cross multiply
    662,743.74x = 914,598.54 × 368,421.14
  4. Step 4: Simplify right side
    662,743.74x = 336,957,436,749.14
  5. Step 5: Solve for x
    x = 336,957,436,749.14/662,743.74
  6. Step 6: Final answer
    x = 508,427.94

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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.