Home / 411,938.60-617,907.90-190,322.60

Finding the Fourth Proportional to 411,938.60, 617,907.90 and 190,322.60

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Solution

The fourth proportional to 411,938.60, 617,907.90 and 190,322.60 is: 285,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,938.60 : 617,907.90 = 190,322.60 : x
  2. Step 2: Convert to fraction form
    411,938.60/617,907.90 = 190,322.60/x
  3. Step 3: Cross multiply
    411,938.60x = 617,907.90 × 190,322.60
  4. Step 4: Simplify right side
    411,938.60x = 117,601,838,088.54
  5. Step 5: Solve for x
    x = 117,601,838,088.54/411,938.60
  6. Step 6: Final answer
    x = 285,483.90

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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.