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Finding the Fourth Proportional to 584,712.56, 806,903.35 and 316,440.56

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Solution

The fourth proportional to 584,712.56, 806,903.35 and 316,440.56 is: 436,687.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,712.56 : 806,903.35 = 316,440.56 : x
  2. Step 2: Convert to fraction form
    584,712.56/806,903.35 = 316,440.56/x
  3. Step 3: Cross multiply
    584,712.56x = 806,903.35 × 316,440.56
  4. Step 4: Simplify right side
    584,712.56x = 255,336,949,166.03
  5. Step 5: Solve for x
    x = 255,336,949,166.03/584,712.56
  6. Step 6: Final answer
    x = 436,687.98

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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.