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Finding the Fourth Proportional to 583,863.90, 805,732.68 and 325,740.89

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Solution

The fourth proportional to 583,863.90, 805,732.68 and 325,740.89 is: 449,522.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,863.90 : 805,732.68 = 325,740.89 : x
  2. Step 2: Convert to fraction form
    583,863.90/805,732.68 = 325,740.89/x
  3. Step 3: Cross multiply
    583,863.90x = 805,732.68 × 325,740.89
  4. Step 4: Simplify right side
    583,863.90x = 262,460,078,485.32
  5. Step 5: Solve for x
    x = 262,460,078,485.32/583,863.90
  6. Step 6: Final answer
    x = 449,522.70

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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.