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Finding the Fourth Proportional to 298,587.25, 446,828.88 and 186,320.24

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Solution

The fourth proportional to 298,587.25, 446,828.88 and 186,320.24 is: 278,823.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,587.25 : 446,828.88 = 186,320.24 : x
  2. Step 2: Convert to fraction form
    298,587.25/446,828.88 = 186,320.24/x
  3. Step 3: Cross multiply
    298,587.25x = 446,828.88 × 186,320.24
  4. Step 4: Simplify right side
    298,587.25x = 83,253,264,160.53
  5. Step 5: Solve for x
    x = 83,253,264,160.53/298,587.25
  6. Step 6: Final answer
    x = 278,823.91

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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.