Home / 626,579.13-865,128.60-385,185.36

Finding the Fourth Proportional to 626,579.13, 865,128.60 and 385,185.36

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Solution

The fourth proportional to 626,579.13, 865,128.60 and 385,185.36 is: 531,832.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,579.13 : 865,128.60 = 385,185.36 : x
  2. Step 2: Convert to fraction form
    626,579.13/865,128.60 = 385,185.36/x
  3. Step 3: Cross multiply
    626,579.13x = 865,128.60 × 385,185.36
  4. Step 4: Simplify right side
    626,579.13x = 333,234,871,237.30
  5. Step 5: Solve for x
    x = 333,234,871,237.30/626,579.13
  6. Step 6: Final answer
    x = 531,832.06

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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.