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Finding the Fourth Proportional to 518,806.84, 715,954.62 and 292,452.34

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Solution

The fourth proportional to 518,806.84, 715,954.62 and 292,452.34 is: 403,584.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,806.84 : 715,954.62 = 292,452.34 : x
  2. Step 2: Convert to fraction form
    518,806.84/715,954.62 = 292,452.34/x
  3. Step 3: Cross multiply
    518,806.84x = 715,954.62 × 292,452.34
  4. Step 4: Simplify right side
    518,806.84x = 209,382,603,952.81
  5. Step 5: Solve for x
    x = 209,382,603,952.81/518,806.84
  6. Step 6: Final answer
    x = 403,584.89

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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.