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Finding the Fourth Proportional to 526,412.30, 788,452.05 and 433,100.30

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Solution

The fourth proportional to 526,412.30, 788,452.05 and 433,100.30 is: 648,690.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,412.30 : 788,452.05 = 433,100.30 : x
  2. Step 2: Convert to fraction form
    526,412.30/788,452.05 = 433,100.30/x
  3. Step 3: Cross multiply
    526,412.30x = 788,452.05 × 433,100.30
  4. Step 4: Simplify right side
    526,412.30x = 341,478,819,390.62
  5. Step 5: Solve for x
    x = 341,478,819,390.62/526,412.30
  6. Step 6: Final answer
    x = 648,690.81

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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.