Home / 1,121,900.58-1,681,850.52-411,763.86

Finding the Fourth Proportional to 1,121,900.58, 1,681,850.52 and 411,763.86

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Solution

The fourth proportional to 1,121,900.58, 1,681,850.52 and 411,763.86 is: 617,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,900.58 : 1,681,850.52 = 411,763.86 : x
  2. Step 2: Convert to fraction form
    1,121,900.58/1,681,850.52 = 411,763.86/x
  3. Step 3: Cross multiply
    1,121,900.58x = 1,681,850.52 × 411,763.86
  4. Step 4: Simplify right side
    1,121,900.58x = 692,525,262,058.21
  5. Step 5: Solve for x
    x = 692,525,262,058.21/1,121,900.58
  6. Step 6: Final answer
    x = 617,278.64

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Double scale
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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.