Home / 919,751.56-1,267,941.71-646,972.81

Finding the Fourth Proportional to 919,751.56, 1,267,941.71 and 646,972.81

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Solution

The fourth proportional to 919,751.56, 1,267,941.71 and 646,972.81 is: 891,897.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,751.56 : 1,267,941.71 = 646,972.81 : x
  2. Step 2: Convert to fraction form
    919,751.56/1,267,941.71 = 646,972.81/x
  3. Step 3: Cross multiply
    919,751.56x = 1,267,941.71 × 646,972.81
  4. Step 4: Simplify right side
    919,751.56x = 820,323,809,482.48
  5. Step 5: Solve for x
    x = 820,323,809,482.48/919,751.56
  6. Step 6: Final answer
    x = 891,897.17

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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.