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Finding the Fourth Proportional to 291,605.80, 437,667.90 and 249,615.40

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Solution

The fourth proportional to 291,605.80, 437,667.90 and 249,615.40 is: 374,644.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,605.80 : 437,667.90 = 249,615.40 : x
  2. Step 2: Convert to fraction form
    291,605.80/437,667.90 = 249,615.40/x
  3. Step 3: Cross multiply
    291,605.80x = 437,667.90 × 249,615.40
  4. Step 4: Simplify right side
    291,605.80x = 109,248,647,925.66
  5. Step 5: Solve for x
    x = 109,248,647,925.66/291,605.80
  6. Step 6: Final answer
    x = 374,644.98

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1.5x scale

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.