Home / 938,009.60-1,405,977.60-517,587.20

Finding the Fourth Proportional to 938,009.60, 1,405,977.60 and 517,587.20

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Solution

The fourth proportional to 938,009.60, 1,405,977.60 and 517,587.20 is: 775,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,009.60 : 1,405,977.60 = 517,587.20 : x
  2. Step 2: Convert to fraction form
    938,009.60/1,405,977.60 = 517,587.20/x
  3. Step 3: Cross multiply
    938,009.60x = 1,405,977.60 × 517,587.20
  4. Step 4: Simplify right side
    938,009.60x = 727,716,009,246.72
  5. Step 5: Solve for x
    x = 727,716,009,246.72/938,009.60
  6. Step 6: Final answer
    x = 775,808.70

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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.