Home / 1,207,640.48-1,666,560.98-663,826.55

Finding the Fourth Proportional to 1,207,640.48, 1,666,560.98 and 663,826.55

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Solution

The fourth proportional to 1,207,640.48, 1,666,560.98 and 663,826.55 is: 916,090.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,640.48 : 1,666,560.98 = 663,826.55 : x
  2. Step 2: Convert to fraction form
    1,207,640.48/1,666,560.98 = 663,826.55/x
  3. Step 3: Cross multiply
    1,207,640.48x = 1,666,560.98 × 663,826.55
  4. Step 4: Simplify right side
    1,207,640.48x = 1,106,307,425,718.02
  5. Step 5: Solve for x
    x = 1,106,307,425,718.02/1,207,640.48
  6. Step 6: Final answer
    x = 916,090.05

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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.