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Finding the Fourth Proportional to 409,803.36, 565,210.68 and 363,911.28

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Solution

The fourth proportional to 409,803.36, 565,210.68 and 363,911.28 is: 501,915.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,803.36 : 565,210.68 = 363,911.28 : x
  2. Step 2: Convert to fraction form
    409,803.36/565,210.68 = 363,911.28/x
  3. Step 3: Cross multiply
    409,803.36x = 565,210.68 × 363,911.28
  4. Step 4: Simplify right side
    409,803.36x = 205,686,542,028.47
  5. Step 5: Solve for x
    x = 205,686,542,028.47/409,803.36
  6. Step 6: Final answer
    x = 501,915.22

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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.