Home / 685,890.36-946,777.14-558,344.52

Finding the Fourth Proportional to 685,890.36, 946,777.14 and 558,344.52

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Solution

The fourth proportional to 685,890.36, 946,777.14 and 558,344.52 is: 770,717.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,890.36 : 946,777.14 = 558,344.52 : x
  2. Step 2: Convert to fraction form
    685,890.36/946,777.14 = 558,344.52/x
  3. Step 3: Cross multiply
    685,890.36x = 946,777.14 × 558,344.52
  4. Step 4: Simplify right side
    685,890.36x = 528,627,827,780.27
  5. Step 5: Solve for x
    x = 528,627,827,780.27/685,890.36
  6. Step 6: Final answer
    x = 770,717.68

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1.5x scale

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.