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Finding the Fourth Proportional to 477,307, 658,666.80 and 262,445.56

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Solution

The fourth proportional to 477,307, 658,666.80 and 262,445.56 is: 362,165.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,307 : 658,666.80 = 262,445.56 : x
  2. Step 2: Convert to fraction form
    477,307/658,666.80 = 262,445.56/x
  3. Step 3: Cross multiply
    477,307x = 658,666.80 × 262,445.56
  4. Step 4: Simplify right side
    477,307x = 172,864,177,179.41
  5. Step 5: Solve for x
    x = 172,864,177,179.41/477,307
  6. Step 6: Final answer
    x = 362,165.60

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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.