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Finding the Fourth Proportional to 586,286.40, 879,429.60 and 365,102.40

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Solution

The fourth proportional to 586,286.40, 879,429.60 and 365,102.40 is: 547,653.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,286.40 : 879,429.60 = 365,102.40 : x
  2. Step 2: Convert to fraction form
    586,286.40/879,429.60 = 365,102.40/x
  3. Step 3: Cross multiply
    586,286.40x = 879,429.60 × 365,102.40
  4. Step 4: Simplify right side
    586,286.40x = 321,081,857,591.04
  5. Step 5: Solve for x
    x = 321,081,857,591.04/586,286.40
  6. Step 6: Final answer
    x = 547,653.60

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Double scale
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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.