Home / 740,258.88-1,021,481.19-430,113.12

Finding the Fourth Proportional to 740,258.88, 1,021,481.19 and 430,113.12

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Solution

The fourth proportional to 740,258.88, 1,021,481.19 and 430,113.12 is: 593,511.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,258.88 : 1,021,481.19 = 430,113.12 : x
  2. Step 2: Convert to fraction form
    740,258.88/1,021,481.19 = 430,113.12/x
  3. Step 3: Cross multiply
    740,258.88x = 1,021,481.19 × 430,113.12
  4. Step 4: Simplify right side
    740,258.88x = 439,352,461,652.21
  5. Step 5: Solve for x
    x = 439,352,461,652.21/740,258.88
  6. Step 6: Final answer
    x = 593,511.91

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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.