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Finding the Fourth Proportional to 355,038.72, 529,431.09 and 351,840.24

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Solution

The fourth proportional to 355,038.72, 529,431.09 and 351,840.24 is: 524,661.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,038.72 : 529,431.09 = 351,840.24 : x
  2. Step 2: Convert to fraction form
    355,038.72/529,431.09 = 351,840.24/x
  3. Step 3: Cross multiply
    355,038.72x = 529,431.09 × 351,840.24
  4. Step 4: Simplify right side
    355,038.72x = 186,275,159,121.91
  5. Step 5: Solve for x
    x = 186,275,159,121.91/355,038.72
  6. Step 6: Final answer
    x = 524,661.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.