Home / 1,211,825.16-1,672,415.10-668,058.12

Finding the Fourth Proportional to 1,211,825.16, 1,672,415.10 and 668,058.12

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Solution

The fourth proportional to 1,211,825.16, 1,672,415.10 and 668,058.12 is: 921,973.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,825.16 : 1,672,415.10 = 668,058.12 : x
  2. Step 2: Convert to fraction form
    1,211,825.16/1,672,415.10 = 668,058.12/x
  3. Step 3: Cross multiply
    1,211,825.16x = 1,672,415.10 × 668,058.12
  4. Step 4: Simplify right side
    1,211,825.16x = 1,117,270,487,565.61
  5. Step 5: Solve for x
    x = 1,117,270,487,565.61/1,211,825.16
  6. Step 6: Final answer
    x = 921,973.34

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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.