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Finding the Fourth Proportional to 490,603.52, 677,088.95 and 272,833.89

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Solution

The fourth proportional to 490,603.52, 677,088.95 and 272,833.89 is: 376,541.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,603.52 : 677,088.95 = 272,833.89 : x
  2. Step 2: Convert to fraction form
    490,603.52/677,088.95 = 272,833.89/x
  3. Step 3: Cross multiply
    490,603.52x = 677,088.95 × 272,833.89
  4. Step 4: Simplify right side
    490,603.52x = 184,732,810,740.35
  5. Step 5: Solve for x
    x = 184,732,810,740.35/490,603.52
  6. Step 6: Final answer
    x = 376,541.96

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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.