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Finding the Fourth Proportional to 492,897.40, 691,922.60 and 492,897.40

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Solution

The fourth proportional to 492,897.40, 691,922.60 and 492,897.40 is: 691,922.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,897.40 : 691,922.60 = 492,897.40 : x
  2. Step 2: Convert to fraction form
    492,897.40/691,922.60 = 492,897.40/x
  3. Step 3: Cross multiply
    492,897.40x = 691,922.60 × 492,897.40
  4. Step 4: Simplify right side
    492,897.40x = 341,046,850,541.24
  5. Step 5: Solve for x
    x = 341,046,850,541.24/492,897.40
  6. Step 6: Final answer
    x = 691,922.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.