Home / 1,212,140.10-1,672,722.45-668,263.17

Finding the Fourth Proportional to 1,212,140.10, 1,672,722.45 and 668,263.17

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Solution

The fourth proportional to 1,212,140.10, 1,672,722.45 and 668,263.17 is: 922,186.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,140.10 : 1,672,722.45 = 668,263.17 : x
  2. Step 2: Convert to fraction form
    1,212,140.10/1,672,722.45 = 668,263.17/x
  3. Step 3: Cross multiply
    1,212,140.10x = 1,672,722.45 × 668,263.17
  4. Step 4: Simplify right side
    1,212,140.10x = 1,117,818,806,967.17
  5. Step 5: Solve for x
    x = 1,117,818,806,967.17/1,212,140.10
  6. Step 6: Final answer
    x = 922,186.15

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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.