Home / 685,938.11-946,581.77-414,017.47

Finding the Fourth Proportional to 685,938.11, 946,581.77 and 414,017.47

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Solution

The fourth proportional to 685,938.11, 946,581.77 and 414,017.47 is: 571,336.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,938.11 : 946,581.77 = 414,017.47 : x
  2. Step 2: Convert to fraction form
    685,938.11/946,581.77 = 414,017.47/x
  3. Step 3: Cross multiply
    685,938.11x = 946,581.77 × 414,017.47
  4. Step 4: Simplify right side
    685,938.11x = 391,901,385,126.98
  5. Step 5: Solve for x
    x = 391,901,385,126.98/685,938.11
  6. Step 6: Final answer
    x = 571,336.36

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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.