Home / 583,853.18-805,579.92-354,404.78

Finding the Fourth Proportional to 583,853.18, 805,579.92 and 354,404.78

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Solution

The fourth proportional to 583,853.18, 805,579.92 and 354,404.78 is: 488,995.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,853.18 : 805,579.92 = 354,404.78 : x
  2. Step 2: Convert to fraction form
    583,853.18/805,579.92 = 354,404.78/x
  3. Step 3: Cross multiply
    583,853.18x = 805,579.92 × 354,404.78
  4. Step 4: Simplify right side
    583,853.18x = 285,501,374,320.02
  5. Step 5: Solve for x
    x = 285,501,374,320.02/583,853.18
  6. Step 6: Final answer
    x = 488,995.15

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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.