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Finding the Fourth Proportional to 605,427.81, 835,526.30 and 347,303.01

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Solution

The fourth proportional to 605,427.81, 835,526.30 and 347,303.01 is: 479,298.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,427.81 : 835,526.30 = 347,303.01 : x
  2. Step 2: Convert to fraction form
    605,427.81/835,526.30 = 347,303.01/x
  3. Step 3: Cross multiply
    605,427.81x = 835,526.30 × 347,303.01
  4. Step 4: Simplify right side
    605,427.81x = 290,180,798,924.16
  5. Step 5: Solve for x
    x = 290,180,798,924.16/605,427.81
  6. Step 6: Final answer
    x = 479,298.76

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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.