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Finding the Fourth Proportional to 579,235,907.60, 868,853,861.40 and 579,235,907.60

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Solution

The fourth proportional to 579,235,907.60, 868,853,861.40 and 579,235,907.60 is: 868,853,861.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,235,907.60 : 868,853,861.40 = 579,235,907.60 : x
  2. Step 2: Convert to fraction form
    579,235,907.60/868,853,861.40 = 579,235,907.60/x
  3. Step 3: Cross multiply
    579,235,907.60x = 868,853,861.40 × 579,235,907.60
  4. Step 4: Simplify right side
    579,235,907.60x = 503,271,354,979,793,600
  5. Step 5: Solve for x
    x = 503,271,354,979,793,600/579,235,907.60
  6. Step 6: Final answer
    x = 868,853,861.40

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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.