Home / 1,186,873.76-1,780,590.72-388,152.20

Finding the Fourth Proportional to 1,186,873.76, 1,780,590.72 and 388,152.20

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Solution

The fourth proportional to 1,186,873.76, 1,780,590.72 and 388,152.20 is: 582,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,873.76 : 1,780,590.72 = 388,152.20 : x
  2. Step 2: Convert to fraction form
    1,186,873.76/1,780,590.72 = 388,152.20/x
  3. Step 3: Cross multiply
    1,186,873.76x = 1,780,590.72 × 388,152.20
  4. Step 4: Simplify right side
    1,186,873.76x = 691,140,205,267.58
  5. Step 5: Solve for x
    x = 691,140,205,267.58/1,186,873.76
  6. Step 6: Final answer
    x = 582,319.90

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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.