Home / 724,307.36-999,525.48-402,008

Finding the Fourth Proportional to 724,307.36, 999,525.48 and 402,008

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Solution

The fourth proportional to 724,307.36, 999,525.48 and 402,008 is: 554,760.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,307.36 : 999,525.48 = 402,008 : x
  2. Step 2: Convert to fraction form
    724,307.36/999,525.48 = 402,008/x
  3. Step 3: Cross multiply
    724,307.36x = 999,525.48 × 402,008
  4. Step 4: Simplify right side
    724,307.36x = 401,817,239,163.84
  5. Step 5: Solve for x
    x = 401,817,239,163.84/724,307.36
  6. Step 6: Final answer
    x = 554,760.67

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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.