Home / 554,917.60-765,788.96-313,210.40

Finding the Fourth Proportional to 554,917.60, 765,788.96 and 313,210.40

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Solution

The fourth proportional to 554,917.60, 765,788.96 and 313,210.40 is: 432,231.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,917.60 : 765,788.96 = 313,210.40 : x
  2. Step 2: Convert to fraction form
    554,917.60/765,788.96 = 313,210.40/x
  3. Step 3: Cross multiply
    554,917.60x = 765,788.96 × 313,210.40
  4. Step 4: Simplify right side
    554,917.60x = 239,853,066,477.18
  5. Step 5: Solve for x
    x = 239,853,066,477.18/554,917.60
  6. Step 6: Final answer
    x = 432,231.86

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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.