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Finding the Fourth Proportional to 572,408.20, 858,612.30 and 507,454.30

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Solution

The fourth proportional to 572,408.20, 858,612.30 and 507,454.30 is: 761,181.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,408.20 : 858,612.30 = 507,454.30 : x
  2. Step 2: Convert to fraction form
    572,408.20/858,612.30 = 507,454.30/x
  3. Step 3: Cross multiply
    572,408.20x = 858,612.30 × 507,454.30
  4. Step 4: Simplify right side
    572,408.20x = 435,706,503,667.89
  5. Step 5: Solve for x
    x = 435,706,503,667.89/572,408.20
  6. Step 6: Final answer
    x = 761,181.45

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Half scale
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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.