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Finding the Fourth Proportional to 556,420.20, 834,630.30 and 534,647.40

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Solution

The fourth proportional to 556,420.20, 834,630.30 and 534,647.40 is: 801,971.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,420.20 : 834,630.30 = 534,647.40 : x
  2. Step 2: Convert to fraction form
    556,420.20/834,630.30 = 534,647.40/x
  3. Step 3: Cross multiply
    556,420.20x = 834,630.30 × 534,647.40
  4. Step 4: Simplify right side
    556,420.20x = 446,232,919,856.22
  5. Step 5: Solve for x
    x = 446,232,919,856.22/556,420.20
  6. Step 6: Final answer
    x = 801,971.10

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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.