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Finding the Fourth Proportional to 584,687.40, 806,868.62 and 316,415.40

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Solution

The fourth proportional to 584,687.40, 806,868.62 and 316,415.40 is: 436,653.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,687.40 : 806,868.62 = 316,415.40 : x
  2. Step 2: Convert to fraction form
    584,687.40/806,868.62 = 316,415.40/x
  3. Step 3: Cross multiply
    584,687.40x = 806,868.62 × 316,415.40
  4. Step 4: Simplify right side
    584,687.40x = 255,305,655,562.67
  5. Step 5: Solve for x
    x = 255,305,655,562.67/584,687.40
  6. Step 6: Final answer
    x = 436,653.25

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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.