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Finding the Fourth Proportional to 449,549.40, 673,449.30 and 249,511.80

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Solution

The fourth proportional to 449,549.40, 673,449.30 and 249,511.80 is: 373,782.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,549.40 : 673,449.30 = 249,511.80 : x
  2. Step 2: Convert to fraction form
    449,549.40/673,449.30 = 249,511.80/x
  3. Step 3: Cross multiply
    449,549.40x = 673,449.30 × 249,511.80
  4. Step 4: Simplify right side
    449,549.40x = 168,033,547,051.74
  5. Step 5: Solve for x
    x = 168,033,547,051.74/449,549.40
  6. Step 6: Final answer
    x = 373,782.16

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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.