Home / 1,211,948.32-1,672,413.45-668,056

Finding the Fourth Proportional to 1,211,948.32, 1,672,413.45 and 668,056

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Solution

The fourth proportional to 1,211,948.32, 1,672,413.45 and 668,056 is: 921,875.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,948.32 : 1,672,413.45 = 668,056 : x
  2. Step 2: Convert to fraction form
    1,211,948.32/1,672,413.45 = 668,056/x
  3. Step 3: Cross multiply
    1,211,948.32x = 1,672,413.45 × 668,056
  4. Step 4: Simplify right side
    1,211,948.32x = 1,117,265,839,753.20
  5. Step 5: Solve for x
    x = 1,117,265,839,753.20/1,211,948.32
  6. Step 6: Final answer
    x = 921,875.81

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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.