Home / 840,185.64-1,159,409.94-477,559.08

Finding the Fourth Proportional to 840,185.64, 1,159,409.94 and 477,559.08

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Solution

The fourth proportional to 840,185.64, 1,159,409.94 and 477,559.08 is: 659,005.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,185.64 : 1,159,409.94 = 477,559.08 : x
  2. Step 2: Convert to fraction form
    840,185.64/1,159,409.94 = 477,559.08/x
  3. Step 3: Cross multiply
    840,185.64x = 1,159,409.94 × 477,559.08
  4. Step 4: Simplify right side
    840,185.64x = 553,686,744,289.26
  5. Step 5: Solve for x
    x = 553,686,744,289.26/840,185.64
  6. Step 6: Final answer
    x = 659,005.25

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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.