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Finding the Fourth Proportional to 353,646.72, 488,038.70 and 192,506.40

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Solution

The fourth proportional to 353,646.72, 488,038.70 and 192,506.40 is: 265,662.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,646.72 : 488,038.70 = 192,506.40 : x
  2. Step 2: Convert to fraction form
    353,646.72/488,038.70 = 192,506.40/x
  3. Step 3: Cross multiply
    353,646.72x = 488,038.70 × 192,506.40
  4. Step 4: Simplify right side
    353,646.72x = 93,950,570,276.22
  5. Step 5: Solve for x
    x = 93,950,570,276.22/353,646.72
  6. Step 6: Final answer
    x = 265,662.22

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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.