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Finding the Fourth Proportional to 598,806.40, 896,897.40 and 520,074.40

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Solution

The fourth proportional to 598,806.40, 896,897.40 and 520,074.40 is: 778,971.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,806.40 : 896,897.40 = 520,074.40 : x
  2. Step 2: Convert to fraction form
    598,806.40/896,897.40 = 520,074.40/x
  3. Step 3: Cross multiply
    598,806.40x = 896,897.40 × 520,074.40
  4. Step 4: Simplify right side
    598,806.40x = 466,453,377,166.56
  5. Step 5: Solve for x
    x = 466,453,377,166.56/598,806.40
  6. Step 6: Final answer
    x = 778,971.93

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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.