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Finding the Fourth Proportional to 462,425.05, 692,516.40 and 319,870.36

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Solution

The fourth proportional to 462,425.05, 692,516.40 and 319,870.36 is: 479,030.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,425.05 : 692,516.40 = 319,870.36 : x
  2. Step 2: Convert to fraction form
    462,425.05/692,516.40 = 319,870.36/x
  3. Step 3: Cross multiply
    462,425.05x = 692,516.40 × 319,870.36
  4. Step 4: Simplify right side
    462,425.05x = 221,515,470,173.90
  5. Step 5: Solve for x
    x = 221,515,470,173.90/462,425.05
  6. Step 6: Final answer
    x = 479,030.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.