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Finding the Fourth Proportional to 671,313.83, 926,384.45 and 365,390.60

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Solution

The fourth proportional to 671,313.83, 926,384.45 and 365,390.60 is: 504,223.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,313.83 : 926,384.45 = 365,390.60 : x
  2. Step 2: Convert to fraction form
    671,313.83/926,384.45 = 365,390.60/x
  3. Step 3: Cross multiply
    671,313.83x = 926,384.45 × 365,390.60
  4. Step 4: Simplify right side
    671,313.83x = 338,492,163,557.30
  5. Step 5: Solve for x
    x = 338,492,163,557.30/671,313.83
  6. Step 6: Final answer
    x = 504,223.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.