Home / 840,416.64-1,159,783.28-458,451.36

Finding the Fourth Proportional to 840,416.64, 1,159,783.28 and 458,451.36

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Solution

The fourth proportional to 840,416.64, 1,159,783.28 and 458,451.36 is: 632,667.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,416.64 : 1,159,783.28 = 458,451.36 : x
  2. Step 2: Convert to fraction form
    840,416.64/1,159,783.28 = 458,451.36/x
  3. Step 3: Cross multiply
    840,416.64x = 1,159,783.28 × 458,451.36
  4. Step 4: Simplify right side
    840,416.64x = 531,704,222,021.26
  5. Step 5: Solve for x
    x = 531,704,222,021.26/840,416.64
  6. Step 6: Final answer
    x = 632,667.41

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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.