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Finding the Fourth Proportional to 706,429.71, 974,843.34 and 400,526.67

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Solution

The fourth proportional to 706,429.71, 974,843.34 and 400,526.67 is: 552,709.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,429.71 : 974,843.34 = 400,526.67 : x
  2. Step 2: Convert to fraction form
    706,429.71/974,843.34 = 400,526.67/x
  3. Step 3: Cross multiply
    706,429.71x = 974,843.34 × 400,526.67
  4. Step 4: Simplify right side
    706,429.71x = 390,450,756,741.88
  5. Step 5: Solve for x
    x = 390,450,756,741.88/706,429.71
  6. Step 6: Final answer
    x = 552,709.99

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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.