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Finding the Fourth Proportional to 630,548.40, 945,822.60 and 578,938.80

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Solution

The fourth proportional to 630,548.40, 945,822.60 and 578,938.80 is: 868,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,548.40 : 945,822.60 = 578,938.80 : x
  2. Step 2: Convert to fraction form
    630,548.40/945,822.60 = 578,938.80/x
  3. Step 3: Cross multiply
    630,548.40x = 945,822.60 × 578,938.80
  4. Step 4: Simplify right side
    630,548.40x = 547,573,401,056.88
  5. Step 5: Solve for x
    x = 547,573,401,056.88/630,548.40
  6. Step 6: Final answer
    x = 868,408.20

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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.