Home / 859,036.86-1,186,003.62-553,639.32

Finding the Fourth Proportional to 859,036.86, 1,186,003.62 and 553,639.32

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Solution

The fourth proportional to 859,036.86, 1,186,003.62 and 553,639.32 is: 764,365.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,036.86 : 1,186,003.62 = 553,639.32 : x
  2. Step 2: Convert to fraction form
    859,036.86/1,186,003.62 = 553,639.32/x
  3. Step 3: Cross multiply
    859,036.86x = 1,186,003.62 × 553,639.32
  4. Step 4: Simplify right side
    859,036.86x = 656,618,237,694.34
  5. Step 5: Solve for x
    x = 656,618,237,694.34/859,036.86
  6. Step 6: Final answer
    x = 764,365.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.