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Finding the Fourth Proportional to 446,907.16, 616,699.74 and 255,915.64

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Solution

The fourth proportional to 446,907.16, 616,699.74 and 255,915.64 is: 353,145.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,907.16 : 616,699.74 = 255,915.64 : x
  2. Step 2: Convert to fraction form
    446,907.16/616,699.74 = 255,915.64/x
  3. Step 3: Cross multiply
    446,907.16x = 616,699.74 × 255,915.64
  4. Step 4: Simplify right side
    446,907.16x = 157,823,108,649.93
  5. Step 5: Solve for x
    x = 157,823,108,649.93/446,907.16
  6. Step 6: Final answer
    x = 353,145.18

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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.