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Finding the Fourth Proportional to 831,636.60, 1,248,038.10 and 532,843.80

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Solution

The fourth proportional to 831,636.60, 1,248,038.10 and 532,843.80 is: 799,639.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,636.60 : 1,248,038.10 = 532,843.80 : x
  2. Step 2: Convert to fraction form
    831,636.60/1,248,038.10 = 532,843.80/x
  3. Step 3: Cross multiply
    831,636.60x = 1,248,038.10 × 532,843.80
  4. Step 4: Simplify right side
    831,636.60x = 665,009,363,748.78
  5. Step 5: Solve for x
    x = 665,009,363,748.78/831,636.60
  6. Step 6: Final answer
    x = 799,639.37

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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.