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Finding the Fourth Proportional to 664,377.40, 996,566.10 and 619,762.60

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Solution

The fourth proportional to 664,377.40, 996,566.10 and 619,762.60 is: 929,643.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,377.40 : 996,566.10 = 619,762.60 : x
  2. Step 2: Convert to fraction form
    664,377.40/996,566.10 = 619,762.60/x
  3. Step 3: Cross multiply
    664,377.40x = 996,566.10 × 619,762.60
  4. Step 4: Simplify right side
    664,377.40x = 617,634,397,207.86
  5. Step 5: Solve for x
    x = 617,634,397,207.86/664,377.40
  6. Step 6: Final answer
    x = 929,643.90

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Double scale
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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.