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Finding the Fourth Proportional to 439,234.56, 606,143.64 and 238,030.56

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Solution

The fourth proportional to 439,234.56, 606,143.64 and 238,030.56 is: 328,482.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,234.56 : 606,143.64 = 238,030.56 : x
  2. Step 2: Convert to fraction form
    439,234.56/606,143.64 = 238,030.56/x
  3. Step 3: Cross multiply
    439,234.56x = 606,143.64 × 238,030.56
  4. Step 4: Simplify right side
    439,234.56x = 144,280,710,069.64
  5. Step 5: Solve for x
    x = 144,280,710,069.64/439,234.56
  6. Step 6: Final answer
    x = 328,482.14

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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.