Home / 1,288,534.88-1,778,199.60-707,811.86

Finding the Fourth Proportional to 1,288,534.88, 1,778,199.60 and 707,811.86

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Solution

The fourth proportional to 1,288,534.88, 1,778,199.60 and 707,811.86 is: 976,792.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,534.88 : 1,778,199.60 = 707,811.86 : x
  2. Step 2: Convert to fraction form
    1,288,534.88/1,778,199.60 = 707,811.86/x
  3. Step 3: Cross multiply
    1,288,534.88x = 1,778,199.60 × 707,811.86
  4. Step 4: Simplify right side
    1,288,534.88x = 1,258,630,766,327.26
  5. Step 5: Solve for x
    x = 1,258,630,766,327.26/1,288,534.88
  6. Step 6: Final answer
    x = 976,792.16

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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.