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Finding the Fourth Proportional to 611,651.40, 917,477.10 and 523,077.90

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Solution

The fourth proportional to 611,651.40, 917,477.10 and 523,077.90 is: 784,616.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,651.40 : 917,477.10 = 523,077.90 : x
  2. Step 2: Convert to fraction form
    611,651.40/917,477.10 = 523,077.90/x
  3. Step 3: Cross multiply
    611,651.40x = 917,477.10 × 523,077.90
  4. Step 4: Simplify right side
    611,651.40x = 479,911,994,766.09
  5. Step 5: Solve for x
    x = 479,911,994,766.09/611,651.40
  6. Step 6: Final answer
    x = 784,616.85

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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.