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Finding the Fourth Proportional to 583,455.61, 805,165.75 and 338,489.91

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Solution

The fourth proportional to 583,455.61, 805,165.75 and 338,489.91 is: 467,114.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,455.61 : 805,165.75 = 338,489.91 : x
  2. Step 2: Convert to fraction form
    583,455.61/805,165.75 = 338,489.91/x
  3. Step 3: Cross multiply
    583,455.61x = 805,165.75 × 338,489.91
  4. Step 4: Simplify right side
    583,455.61x = 272,540,482,252.58
  5. Step 5: Solve for x
    x = 272,540,482,252.58/583,455.61
  6. Step 6: Final answer
    x = 467,114.34

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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.