Home / 430,784.16-646,176.60-193,850.16

Finding the Fourth Proportional to 430,784.16, 646,176.60 and 193,850.16

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Solution

The fourth proportional to 430,784.16, 646,176.60 and 193,850.16 is: 290,775.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,784.16 : 646,176.60 = 193,850.16 : x
  2. Step 2: Convert to fraction form
    430,784.16/646,176.60 = 193,850.16/x
  3. Step 3: Cross multiply
    430,784.16x = 646,176.60 × 193,850.16
  4. Step 4: Simplify right side
    430,784.16x = 125,261,437,298.26
  5. Step 5: Solve for x
    x = 125,261,437,298.26/430,784.16
  6. Step 6: Final answer
    x = 290,775.40

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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.