Home / 456,442.16-684,725.53-190,140.40

Finding the Fourth Proportional to 456,442.16, 684,725.53 and 190,140.40

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Solution

The fourth proportional to 456,442.16, 684,725.53 and 190,140.40 is: 285,236.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,442.16 : 684,725.53 = 190,140.40 : x
  2. Step 2: Convert to fraction form
    456,442.16/684,725.53 = 190,140.40/x
  3. Step 3: Cross multiply
    456,442.16x = 684,725.53 × 190,140.40
  4. Step 4: Simplify right side
    456,442.16x = 130,193,982,740.78
  5. Step 5: Solve for x
    x = 130,193,982,740.78/456,442.16
  6. Step 6: Final answer
    x = 285,236.54

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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.