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Finding the Fourth Proportional to 469,497.60, 704,246.40 and 389,318.40

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Solution

The fourth proportional to 469,497.60, 704,246.40 and 389,318.40 is: 583,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,497.60 : 704,246.40 = 389,318.40 : x
  2. Step 2: Convert to fraction form
    469,497.60/704,246.40 = 389,318.40/x
  3. Step 3: Cross multiply
    469,497.60x = 704,246.40 × 389,318.40
  4. Step 4: Simplify right side
    469,497.60x = 274,176,081,653.76
  5. Step 5: Solve for x
    x = 274,176,081,653.76/469,497.60
  6. Step 6: Final answer
    x = 583,977.60

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Similar ratio
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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.