Home / 767,218.30-1,151,159.40-411,817.30

Finding the Fourth Proportional to 767,218.30, 1,151,159.40 and 411,817.30

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Solution

The fourth proportional to 767,218.30, 1,151,159.40 and 411,817.30 is: 617,904.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,218.30 : 1,151,159.40 = 411,817.30 : x
  2. Step 2: Convert to fraction form
    767,218.30/1,151,159.40 = 411,817.30/x
  3. Step 3: Cross multiply
    767,218.30x = 1,151,159.40 × 411,817.30
  4. Step 4: Simplify right side
    767,218.30x = 474,067,355,977.62
  5. Step 5: Solve for x
    x = 474,067,355,977.62/767,218.30
  6. Step 6: Final answer
    x = 617,904.13

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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.