Home / 411,938.10-617,907.15-190,322.10

Finding the Fourth Proportional to 411,938.10, 617,907.15 and 190,322.10

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Solution

The fourth proportional to 411,938.10, 617,907.15 and 190,322.10 is: 285,483.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,938.10 : 617,907.15 = 190,322.10 : x
  2. Step 2: Convert to fraction form
    411,938.10/617,907.15 = 190,322.10/x
  3. Step 3: Cross multiply
    411,938.10x = 617,907.15 × 190,322.10
  4. Step 4: Simplify right side
    411,938.10x = 117,601,386,393.02
  5. Step 5: Solve for x
    x = 117,601,386,393.02/411,938.10
  6. Step 6: Final answer
    x = 285,483.15

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1.5x scale

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.