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Finding the Fourth Proportional to 470,860.80, 707,110.40 and 249,676.80

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Solution

The fourth proportional to 470,860.80, 707,110.40 and 249,676.80 is: 374,949.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,860.80 : 707,110.40 = 249,676.80 : x
  2. Step 2: Convert to fraction form
    470,860.80/707,110.40 = 249,676.80/x
  3. Step 3: Cross multiply
    470,860.80x = 707,110.40 × 249,676.80
  4. Step 4: Simplify right side
    470,860.80x = 176,549,061,918.72
  5. Step 5: Solve for x
    x = 176,549,061,918.72/470,860.80
  6. Step 6: Final answer
    x = 374,949.59

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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.