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Finding the Fourth Proportional to 538,907.96, 808,595.22 and 289,298.36

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Solution

The fourth proportional to 538,907.96, 808,595.22 and 289,298.36 is: 434,072.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,907.96 : 808,595.22 = 289,298.36 : x
  2. Step 2: Convert to fraction form
    538,907.96/808,595.22 = 289,298.36/x
  3. Step 3: Cross multiply
    538,907.96x = 808,595.22 × 289,298.36
  4. Step 4: Simplify right side
    538,907.96x = 233,925,271,049.84
  5. Step 5: Solve for x
    x = 233,925,271,049.84/538,907.96
  6. Step 6: Final answer
    x = 434,072.77

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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.