Home / 986,690.21-1,361,632.47-533,981.21

Finding the Fourth Proportional to 986,690.21, 1,361,632.47 and 533,981.21

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Solution

The fourth proportional to 986,690.21, 1,361,632.47 and 533,981.21 is: 736,894.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,690.21 : 1,361,632.47 = 533,981.21 : x
  2. Step 2: Convert to fraction form
    986,690.21/1,361,632.47 = 533,981.21/x
  3. Step 3: Cross multiply
    986,690.21x = 1,361,632.47 × 533,981.21
  4. Step 4: Simplify right side
    986,690.21x = 727,086,144,427.82
  5. Step 5: Solve for x
    x = 727,086,144,427.82/986,690.21
  6. Step 6: Final answer
    x = 736,894.05

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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.