Home / 859,378.86-1,185,921.54-477,406.58

Finding the Fourth Proportional to 859,378.86, 1,185,921.54 and 477,406.58

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Solution

The fourth proportional to 859,378.86, 1,185,921.54 and 477,406.58 is: 658,809.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,378.86 : 1,185,921.54 = 477,406.58 : x
  2. Step 2: Convert to fraction form
    859,378.86/1,185,921.54 = 477,406.58/x
  3. Step 3: Cross multiply
    859,378.86x = 1,185,921.54 × 477,406.58
  4. Step 4: Simplify right side
    859,378.86x = 566,166,740,630.13
  5. Step 5: Solve for x
    x = 566,166,740,630.13/859,378.86
  6. Step 6: Final answer
    x = 658,809.25

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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.