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Finding the Fourth Proportional to 476,483.72, 657,299.34 and 385,941.92

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Solution

The fourth proportional to 476,483.72, 657,299.34 and 385,941.92 is: 532,398.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,483.72 : 657,299.34 = 385,941.92 : x
  2. Step 2: Convert to fraction form
    476,483.72/657,299.34 = 385,941.92/x
  3. Step 3: Cross multiply
    476,483.72x = 657,299.34 × 385,941.92
  4. Step 4: Simplify right side
    476,483.72x = 253,679,369,294.33
  5. Step 5: Solve for x
    x = 253,679,369,294.33/476,483.72
  6. Step 6: Final answer
    x = 532,398.82

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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.