Home / 685,942.13-946,600.89-384,136.13

Finding the Fourth Proportional to 685,942.13, 946,600.89 and 384,136.13

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Solution

The fourth proportional to 685,942.13, 946,600.89 and 384,136.13 is: 530,108.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,942.13 : 946,600.89 = 384,136.13 : x
  2. Step 2: Convert to fraction form
    685,942.13/946,600.89 = 384,136.13/x
  3. Step 3: Cross multiply
    685,942.13x = 946,600.89 × 384,136.13
  4. Step 4: Simplify right side
    685,942.13x = 363,623,602,539.16
  5. Step 5: Solve for x
    x = 363,623,602,539.16/685,942.13
  6. Step 6: Final answer
    x = 530,108.28

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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.