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Finding the Fourth Proportional to 418,847.76, 577,750.73 and 365,261.40

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Solution

The fourth proportional to 418,847.76, 577,750.73 and 365,261.40 is: 503,834.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,847.76 : 577,750.73 = 365,261.40 : x
  2. Step 2: Convert to fraction form
    418,847.76/577,750.73 = 365,261.40/x
  3. Step 3: Cross multiply
    418,847.76x = 577,750.73 × 365,261.40
  4. Step 4: Simplify right side
    418,847.76x = 211,030,038,664.52
  5. Step 5: Solve for x
    x = 211,030,038,664.52/418,847.76
  6. Step 6: Final answer
    x = 503,834.71

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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.