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Finding the Fourth Proportional to 584,718.48, 806,912.28 and 316,446.48

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Solution

The fourth proportional to 584,718.48, 806,912.28 and 316,446.48 is: 436,696.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,718.48 : 806,912.28 = 316,446.48 : x
  2. Step 2: Convert to fraction form
    584,718.48/806,912.28 = 316,446.48/x
  3. Step 3: Cross multiply
    584,718.48x = 806,912.28 × 316,446.48
  4. Step 4: Simplify right side
    584,718.48x = 255,344,550,674.77
  5. Step 5: Solve for x
    x = 255,344,550,674.77/584,718.48
  6. Step 6: Final answer
    x = 436,696.56

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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.