Home / 685,566.16-1,028,016.93-343,862.80

Finding the Fourth Proportional to 685,566.16, 1,028,016.93 and 343,862.80

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Solution

The fourth proportional to 685,566.16, 1,028,016.93 and 343,862.80 is: 515,627.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,566.16 : 1,028,016.93 = 343,862.80 : x
  2. Step 2: Convert to fraction form
    685,566.16/1,028,016.93 = 343,862.80/x
  3. Step 3: Cross multiply
    685,566.16x = 1,028,016.93 × 343,862.80
  4. Step 4: Simplify right side
    685,566.16x = 353,496,779,997.20
  5. Step 5: Solve for x
    x = 353,496,779,997.20/685,566.16
  6. Step 6: Final answer
    x = 515,627.52

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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.