Home / 865,666.04-1,298,564.33-258,406.38

Finding the Fourth Proportional to 865,666.04, 1,298,564.33 and 258,406.38

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Solution

The fourth proportional to 865,666.04, 1,298,564.33 and 258,406.38 is: 387,629.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,666.04 : 1,298,564.33 = 258,406.38 : x
  2. Step 2: Convert to fraction form
    865,666.04/1,298,564.33 = 258,406.38/x
  3. Step 3: Cross multiply
    865,666.04x = 1,298,564.33 × 258,406.38
  4. Step 4: Simplify right side
    865,666.04x = 335,557,306,420.39
  5. Step 5: Solve for x
    x = 335,557,306,420.39/865,666.04
  6. Step 6: Final answer
    x = 387,629.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.