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Finding the Fourth Proportional to 646,665.64, 892,307.16 and 367,253.32

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Solution

The fourth proportional to 646,665.64, 892,307.16 and 367,253.32 is: 506,757.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,665.64 : 892,307.16 = 367,253.32 : x
  2. Step 2: Convert to fraction form
    646,665.64/892,307.16 = 367,253.32/x
  3. Step 3: Cross multiply
    646,665.64x = 892,307.16 × 367,253.32
  4. Step 4: Simplify right side
    646,665.64x = 327,702,766,969.77
  5. Step 5: Solve for x
    x = 327,702,766,969.77/646,665.64
  6. Step 6: Final answer
    x = 506,757.66

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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.