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Finding the Fourth Proportional to 546,381.42, 754,105.95 and 317,085.42

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Solution

The fourth proportional to 546,381.42, 754,105.95 and 317,085.42 is: 437,635.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,381.42 : 754,105.95 = 317,085.42 : x
  2. Step 2: Convert to fraction form
    546,381.42/754,105.95 = 317,085.42/x
  3. Step 3: Cross multiply
    546,381.42x = 754,105.95 × 317,085.42
  4. Step 4: Simplify right side
    546,381.42x = 239,116,001,880.25
  5. Step 5: Solve for x
    x = 239,116,001,880.25/546,381.42
  6. Step 6: Final answer
    x = 437,635.68

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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.