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Finding the Fourth Proportional to 576,547.10, 795,636.54 and 321,907.40

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Solution

The fourth proportional to 576,547.10, 795,636.54 and 321,907.40 is: 444,233.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,547.10 : 795,636.54 = 321,907.40 : x
  2. Step 2: Convert to fraction form
    576,547.10/795,636.54 = 321,907.40/x
  3. Step 3: Cross multiply
    576,547.10x = 795,636.54 × 321,907.40
  4. Step 4: Simplify right side
    576,547.10x = 256,121,289,936.40
  5. Step 5: Solve for x
    x = 256,121,289,936.40/576,547.10
  6. Step 6: Final answer
    x = 444,233.07

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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.