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Finding the Fourth Proportional to 598,801.40, 896,889.90 and 520,069.40

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Solution

The fourth proportional to 598,801.40, 896,889.90 and 520,069.40 is: 778,964.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,801.40 : 896,889.90 = 520,069.40 : x
  2. Step 2: Convert to fraction form
    598,801.40/896,889.90 = 520,069.40/x
  3. Step 3: Cross multiply
    598,801.40x = 896,889.90 × 520,069.40
  4. Step 4: Simplify right side
    598,801.40x = 466,444,992,159.06
  5. Step 5: Solve for x
    x = 466,444,992,159.06/598,801.40
  6. Step 6: Final answer
    x = 778,964.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.