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Finding the Fourth Proportional to 584,710.31, 806,900.23 and 316,438.31

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Solution

The fourth proportional to 584,710.31, 806,900.23 and 316,438.31 is: 436,684.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,710.31 : 806,900.23 = 316,438.31 : x
  2. Step 2: Convert to fraction form
    584,710.31/806,900.23 = 316,438.31/x
  3. Step 3: Cross multiply
    584,710.31x = 806,900.23 × 316,438.31
  4. Step 4: Simplify right side
    584,710.31x = 255,334,147,532.61
  5. Step 5: Solve for x
    x = 255,334,147,532.61/584,710.31
  6. Step 6: Final answer
    x = 436,684.87

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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.