Home / 685,595.04-946,175.76-505,131.36

Finding the Fourth Proportional to 685,595.04, 946,175.76 and 505,131.36

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Solution

The fourth proportional to 685,595.04, 946,175.76 and 505,131.36 is: 697,121.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,595.04 : 946,175.76 = 505,131.36 : x
  2. Step 2: Convert to fraction form
    685,595.04/946,175.76 = 505,131.36/x
  3. Step 3: Cross multiply
    685,595.04x = 946,175.76 × 505,131.36
  4. Step 4: Simplify right side
    685,595.04x = 477,943,048,447.83
  5. Step 5: Solve for x
    x = 477,943,048,447.83/685,595.04
  6. Step 6: Final answer
    x = 697,121.51

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Double scale
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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.