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Finding the Fourth Proportional to 556,036.36, 767,412.15 and 352,105.90

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Solution

The fourth proportional to 556,036.36, 767,412.15 and 352,105.90 is: 485,958.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,036.36 : 767,412.15 = 352,105.90 : x
  2. Step 2: Convert to fraction form
    556,036.36/767,412.15 = 352,105.90/x
  3. Step 3: Cross multiply
    556,036.36x = 767,412.15 × 352,105.90
  4. Step 4: Simplify right side
    556,036.36x = 270,210,345,746.69
  5. Step 5: Solve for x
    x = 270,210,345,746.69/556,036.36
  6. Step 6: Final answer
    x = 485,958.05

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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.