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Finding the Fourth Proportional to 469,555.65, 704,326.59 and 325,328.40

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Solution

The fourth proportional to 469,555.65, 704,326.59 and 325,328.40 is: 487,987.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,555.65 : 704,326.59 = 325,328.40 : x
  2. Step 2: Convert to fraction form
    469,555.65/704,326.59 = 325,328.40/x
  3. Step 3: Cross multiply
    469,555.65x = 704,326.59 × 325,328.40
  4. Step 4: Simplify right side
    469,555.65x = 229,137,442,602.16
  5. Step 5: Solve for x
    x = 229,137,442,602.16/469,555.65
  6. Step 6: Final answer
    x = 487,987.83

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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.