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Finding the Fourth Proportional to 649,401.30, 974,101.95 and 649,401.30

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Solution

The fourth proportional to 649,401.30, 974,101.95 and 649,401.30 is: 974,101.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,401.30 : 974,101.95 = 649,401.30 : x
  2. Step 2: Convert to fraction form
    649,401.30/974,101.95 = 649,401.30/x
  3. Step 3: Cross multiply
    649,401.30x = 974,101.95 × 649,401.30
  4. Step 4: Simplify right side
    649,401.30x = 632,583,072,662.54
  5. Step 5: Solve for x
    x = 632,583,072,662.54/649,401.30
  6. Step 6: Final answer
    x = 974,101.95

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Half scale
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Double scale
Find fourth proportional to 649,402.30, 974,103.45 and 649,402.30
Similar ratio
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1.5x scale

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.