Home / 583,839.90-805,561.64-354,391.54

Finding the Fourth Proportional to 583,839.90, 805,561.64 and 354,391.54

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Solution

The fourth proportional to 583,839.90, 805,561.64 and 354,391.54 is: 488,976.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,839.90 : 805,561.64 = 354,391.54 : x
  2. Step 2: Convert to fraction form
    583,839.90/805,561.64 = 354,391.54/x
  3. Step 3: Cross multiply
    583,839.90x = 805,561.64 × 354,391.54
  4. Step 4: Simplify right side
    583,839.90x = 285,484,227,707.63
  5. Step 5: Solve for x
    x = 285,484,227,707.63/583,839.90
  6. Step 6: Final answer
    x = 488,976.91

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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.