Home / 1,285,076.86-1,773,416.56-712,126.60

Finding the Fourth Proportional to 1,285,076.86, 1,773,416.56 and 712,126.60

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Solution

The fourth proportional to 1,285,076.86, 1,773,416.56 and 712,126.60 is: 982,740.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,076.86 : 1,773,416.56 = 712,126.60 : x
  2. Step 2: Convert to fraction form
    1,285,076.86/1,773,416.56 = 712,126.60/x
  3. Step 3: Cross multiply
    1,285,076.86x = 1,773,416.56 × 712,126.60
  4. Step 4: Simplify right side
    1,285,076.86x = 1,262,897,105,256.50
  5. Step 5: Solve for x
    x = 1,262,897,105,256.50/1,285,076.86
  6. Step 6: Final answer
    x = 982,740.52

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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.