Home / 928,266.75-1,281,008.12-525,858.75

Finding the Fourth Proportional to 928,266.75, 1,281,008.12 and 525,858.75

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Solution

The fourth proportional to 928,266.75, 1,281,008.12 and 525,858.75 is: 725,685.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,266.75 : 1,281,008.12 = 525,858.75 : x
  2. Step 2: Convert to fraction form
    928,266.75/1,281,008.12 = 525,858.75/x
  3. Step 3: Cross multiply
    928,266.75x = 1,281,008.12 × 525,858.75
  4. Step 4: Simplify right side
    928,266.75x = 673,629,326,093.76
  5. Step 5: Solve for x
    x = 673,629,326,093.76/928,266.75
  6. Step 6: Final answer
    x = 725,685.08

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Double scale
Find fourth proportional to 928,267.75, 1,281,009.50 and 525,859.75
Similar ratio
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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.