Home / 1,688,558.49-2,330,211.20-914,189.18

Finding the Fourth Proportional to 1,688,558.49, 2,330,211.20 and 914,189.18

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Solution

The fourth proportional to 1,688,558.49, 2,330,211.20 and 914,189.18 is: 1,261,581.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,558.49 : 2,330,211.20 = 914,189.18 : x
  2. Step 2: Convert to fraction form
    1,688,558.49/2,330,211.20 = 914,189.18/x
  3. Step 3: Cross multiply
    1,688,558.49x = 2,330,211.20 × 914,189.18
  4. Step 4: Simplify right side
    1,688,558.49x = 2,130,253,849,932.81
  5. Step 5: Solve for x
    x = 2,130,253,849,932.81/1,688,558.49
  6. Step 6: Final answer
    x = 1,261,581.32

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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.