Home / 686,042.01-946,808.07-395,664.93

Finding the Fourth Proportional to 686,042.01, 946,808.07 and 395,664.93

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Solution

The fourth proportional to 686,042.01, 946,808.07 and 395,664.93 is: 546,058.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,042.01 : 946,808.07 = 395,664.93 : x
  2. Step 2: Convert to fraction form
    686,042.01/946,808.07 = 395,664.93/x
  3. Step 3: Cross multiply
    686,042.01x = 946,808.07 × 395,664.93
  4. Step 4: Simplify right side
    686,042.01x = 374,618,748,739.99
  5. Step 5: Solve for x
    x = 374,618,748,739.99/686,042.01
  6. Step 6: Final answer
    x = 546,058.03

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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.