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Finding the Fourth Proportional to 438,595.35, 605,357.51 and 277,664.95

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Solution

The fourth proportional to 438,595.35, 605,357.51 and 277,664.95 is: 383,238.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,595.35 : 605,357.51 = 277,664.95 : x
  2. Step 2: Convert to fraction form
    438,595.35/605,357.51 = 277,664.95/x
  3. Step 3: Cross multiply
    438,595.35x = 605,357.51 × 277,664.95
  4. Step 4: Simplify right side
    438,595.35x = 168,086,562,746.28
  5. Step 5: Solve for x
    x = 168,086,562,746.28/438,595.35
  6. Step 6: Final answer
    x = 383,238.36

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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.