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Finding the Fourth Proportional to 578,000.10, 807,625.50 and 578,000.10

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Solution

The fourth proportional to 578,000.10, 807,625.50 and 578,000.10 is: 807,625.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,000.10 : 807,625.50 = 578,000.10 : x
  2. Step 2: Convert to fraction form
    578,000.10/807,625.50 = 578,000.10/x
  3. Step 3: Cross multiply
    578,000.10x = 807,625.50 × 578,000.10
  4. Step 4: Simplify right side
    578,000.10x = 466,807,619,762.55
  5. Step 5: Solve for x
    x = 466,807,619,762.55/578,000.10
  6. Step 6: Final answer
    x = 807,625.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.