Home / 1,643,203.59-2,267,579.09-918,056.76

Finding the Fourth Proportional to 1,643,203.59, 2,267,579.09 and 918,056.76

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Solution

The fourth proportional to 1,643,203.59, 2,267,579.09 and 918,056.76 is: 1,266,894.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,203.59 : 2,267,579.09 = 918,056.76 : x
  2. Step 2: Convert to fraction form
    1,643,203.59/2,267,579.09 = 918,056.76/x
  3. Step 3: Cross multiply
    1,643,203.59x = 2,267,579.09 × 918,056.76
  4. Step 4: Simplify right side
    1,643,203.59x = 2,081,766,306,200.87
  5. Step 5: Solve for x
    x = 2,081,766,306,200.87/1,643,203.59
  6. Step 6: Final answer
    x = 1,266,894.94

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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.