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Finding the Fourth Proportional to 586,443.40, 879,492.30 and 231,339.40

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Solution

The fourth proportional to 586,443.40, 879,492.30 and 231,339.40 is: 346,940.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,443.40 : 879,492.30 = 231,339.40 : x
  2. Step 2: Convert to fraction form
    586,443.40/879,492.30 = 231,339.40/x
  3. Step 3: Cross multiply
    586,443.40x = 879,492.30 × 231,339.40
  4. Step 4: Simplify right side
    586,443.40x = 203,461,220,986.62
  5. Step 5: Solve for x
    x = 203,461,220,986.62/586,443.40
  6. Step 6: Final answer
    x = 346,940.93

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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.