Home / 931,501.76-1,396,083.60-398,396

Finding the Fourth Proportional to 931,501.76, 1,396,083.60 and 398,396

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Solution

The fourth proportional to 931,501.76, 1,396,083.60 and 398,396 is: 597,094.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,501.76 : 1,396,083.60 = 398,396 : x
  2. Step 2: Convert to fraction form
    931,501.76/1,396,083.60 = 398,396/x
  3. Step 3: Cross multiply
    931,501.76x = 1,396,083.60 × 398,396
  4. Step 4: Simplify right side
    931,501.76x = 556,194,121,905.60
  5. Step 5: Solve for x
    x = 556,194,121,905.60/931,501.76
  6. Step 6: Final answer
    x = 597,094.01

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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.