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Finding the Fourth Proportional to 507,702.16, 700,661.64 and 281,362.24

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Solution

The fourth proportional to 507,702.16, 700,661.64 and 281,362.24 is: 388,297.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,702.16 : 700,661.64 = 281,362.24 : x
  2. Step 2: Convert to fraction form
    507,702.16/700,661.64 = 281,362.24/x
  3. Step 3: Cross multiply
    507,702.16x = 700,661.64 × 281,362.24
  4. Step 4: Simplify right side
    507,702.16x = 197,139,728,512.47
  5. Step 5: Solve for x
    x = 197,139,728,512.47/507,702.16
  6. Step 6: Final answer
    x = 388,297.99

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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.