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Finding the Fourth Proportional to 451,702.86, 623,345.70 and 247,749.63

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Solution

The fourth proportional to 451,702.86, 623,345.70 and 247,749.63 is: 341,892.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,702.86 : 623,345.70 = 247,749.63 : x
  2. Step 2: Convert to fraction form
    451,702.86/623,345.70 = 247,749.63/x
  3. Step 3: Cross multiply
    451,702.86x = 623,345.70 × 247,749.63
  4. Step 4: Simplify right side
    451,702.86x = 154,433,666,537.09
  5. Step 5: Solve for x
    x = 154,433,666,537.09/451,702.86
  6. Step 6: Final answer
    x = 341,892.16

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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.