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Finding the Fourth Proportional to 445,043.84, 663,595.76 and 395,588.48

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Solution

The fourth proportional to 445,043.84, 663,595.76 and 395,588.48 is: 589,853.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,043.84 : 663,595.76 = 395,588.48 : x
  2. Step 2: Convert to fraction form
    445,043.84/663,595.76 = 395,588.48/x
  3. Step 3: Cross multiply
    445,043.84x = 663,595.76 × 395,588.48
  4. Step 4: Simplify right side
    445,043.84x = 262,510,838,032.85
  5. Step 5: Solve for x
    x = 262,510,838,032.85/445,043.84
  6. Step 6: Final answer
    x = 589,853.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.