Home / 621,301.60-856,903.08-403,271.92

Finding the Fourth Proportional to 621,301.60, 856,903.08 and 403,271.92

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Solution

The fourth proportional to 621,301.60, 856,903.08 and 403,271.92 is: 556,195.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,301.60 : 856,903.08 = 403,271.92 : x
  2. Step 2: Convert to fraction form
    621,301.60/856,903.08 = 403,271.92/x
  3. Step 3: Cross multiply
    621,301.60x = 856,903.08 × 403,271.92
  4. Step 4: Simplify right side
    621,301.60x = 345,564,950,325.51
  5. Step 5: Solve for x
    x = 345,564,950,325.51/621,301.60
  6. Step 6: Final answer
    x = 556,195.17

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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.