Home / 786,286.90-1,177,701.54-649,804.15

Finding the Fourth Proportional to 786,286.90, 1,177,701.54 and 649,804.15

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Solution

The fourth proportional to 786,286.90, 1,177,701.54 and 649,804.15 is: 973,277.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,286.90 : 1,177,701.54 = 649,804.15 : x
  2. Step 2: Convert to fraction form
    786,286.90/1,177,701.54 = 649,804.15/x
  3. Step 3: Cross multiply
    786,286.90x = 1,177,701.54 × 649,804.15
  4. Step 4: Simplify right side
    786,286.90x = 765,275,348,153.39
  5. Step 5: Solve for x
    x = 765,275,348,153.39/786,286.90
  6. Step 6: Final answer
    x = 973,277.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.