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Finding the Fourth Proportional to 364,064.64, 501,265.85 and 309,509.46

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Solution

The fourth proportional to 364,064.64, 501,265.85 and 309,509.46 is: 426,151.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,064.64 : 501,265.85 = 309,509.46 : x
  2. Step 2: Convert to fraction form
    364,064.64/501,265.85 = 309,509.46/x
  3. Step 3: Cross multiply
    364,064.64x = 501,265.85 × 309,509.46
  4. Step 4: Simplify right side
    364,064.64x = 155,146,521,002.39
  5. Step 5: Solve for x
    x = 155,146,521,002.39/364,064.64
  6. Step 6: Final answer
    x = 426,151.03

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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.