Home / 840,165.81-1,159,382.73-477,539.34

Finding the Fourth Proportional to 840,165.81, 1,159,382.73 and 477,539.34

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Solution

The fourth proportional to 840,165.81, 1,159,382.73 and 477,539.34 is: 658,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,165.81 : 1,159,382.73 = 477,539.34 : x
  2. Step 2: Convert to fraction form
    840,165.81/1,159,382.73 = 477,539.34/x
  3. Step 3: Cross multiply
    840,165.81x = 1,159,382.73 × 477,539.34
  4. Step 4: Simplify right side
    840,165.81x = 553,650,863,691.60
  5. Step 5: Solve for x
    x = 553,650,863,691.60/840,165.81
  6. Step 6: Final answer
    x = 658,978.09

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Double scale
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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.