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Finding the Fourth Proportional to 526,543.40, 739,027 and 526,543.40

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Solution

The fourth proportional to 526,543.40, 739,027 and 526,543.40 is: 739,027

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,543.40 : 739,027 = 526,543.40 : x
  2. Step 2: Convert to fraction form
    526,543.40/739,027 = 526,543.40/x
  3. Step 3: Cross multiply
    526,543.40x = 739,027 × 526,543.40
  4. Step 4: Simplify right side
    526,543.40x = 389,129,789,271.80
  5. Step 5: Solve for x
    x = 389,129,789,271.80/526,543.40
  6. Step 6: Final answer
    x = 739,027

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.