Home / 928,486.75-1,281,331.16-526,078.75

Finding the Fourth Proportional to 928,486.75, 1,281,331.16 and 526,078.75

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Solution

The fourth proportional to 928,486.75, 1,281,331.16 and 526,078.75 is: 725,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,486.75 : 1,281,331.16 = 526,078.75 : x
  2. Step 2: Convert to fraction form
    928,486.75/1,281,331.16 = 526,078.75/x
  3. Step 3: Cross multiply
    928,486.75x = 1,281,331.16 × 526,078.75
  4. Step 4: Simplify right side
    928,486.75x = 674,081,094,988.85
  5. Step 5: Solve for x
    x = 674,081,094,988.85/928,486.75
  6. Step 6: Final answer
    x = 725,999.69

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Double scale
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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.