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Finding the Fourth Proportional to 692,193.42, 955,225.12 and 386,266.56

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Solution

The fourth proportional to 692,193.42, 955,225.12 and 386,266.56 is: 533,046.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,193.42 : 955,225.12 = 386,266.56 : x
  2. Step 2: Convert to fraction form
    692,193.42/955,225.12 = 386,266.56/x
  3. Step 3: Cross multiply
    692,193.42x = 955,225.12 × 386,266.56
  4. Step 4: Simplify right side
    692,193.42x = 368,971,521,127.99
  5. Step 5: Solve for x
    x = 368,971,521,127.99/692,193.42
  6. Step 6: Final answer
    x = 533,046.85

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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.