Home / 840,164.81-1,159,381.35-477,538.34

Finding the Fourth Proportional to 840,164.81, 1,159,381.35 and 477,538.34

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Solution

The fourth proportional to 840,164.81, 1,159,381.35 and 477,538.34 is: 658,976.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,164.81 : 1,159,381.35 = 477,538.34 : x
  2. Step 2: Convert to fraction form
    840,164.81/1,159,381.35 = 477,538.34/x
  3. Step 3: Cross multiply
    840,164.81x = 1,159,381.35 × 477,538.34
  4. Step 4: Simplify right side
    840,164.81x = 553,649,039,509.05
  5. Step 5: Solve for x
    x = 553,649,039,509.05/840,164.81
  6. Step 6: Final answer
    x = 658,976.71

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Half scale
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Double scale
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Similar ratio
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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.