Home / 1,207,638.86-1,666,558.73-663,824.93

Finding the Fourth Proportional to 1,207,638.86, 1,666,558.73 and 663,824.93

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Solution

The fourth proportional to 1,207,638.86, 1,666,558.73 and 663,824.93 is: 916,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,638.86 : 1,666,558.73 = 663,824.93 : x
  2. Step 2: Convert to fraction form
    1,207,638.86/1,666,558.73 = 663,824.93/x
  3. Step 3: Cross multiply
    1,207,638.86x = 1,666,558.73 × 663,824.93
  4. Step 4: Simplify right side
    1,207,638.86x = 1,106,303,225,609.91
  5. Step 5: Solve for x
    x = 1,106,303,225,609.91/1,207,638.86
  6. Step 6: Final answer
    x = 916,087.80

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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.