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Finding the Fourth Proportional to 377,412.66, 520,265.97 and 249,866.82

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Solution

The fourth proportional to 377,412.66, 520,265.97 and 249,866.82 is: 344,443.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,412.66 : 520,265.97 = 249,866.82 : x
  2. Step 2: Convert to fraction form
    377,412.66/520,265.97 = 249,866.82/x
  3. Step 3: Cross multiply
    377,412.66x = 520,265.97 × 249,866.82
  4. Step 4: Simplify right side
    377,412.66x = 129,997,203,478.12
  5. Step 5: Solve for x
    x = 129,997,203,478.12/377,412.66
  6. Step 6: Final answer
    x = 344,443.14

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1.5x scale

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.