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Finding the Fourth Proportional to 490,974,938.40, 736,462,407.60 and 490,974,938.40

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Solution

The fourth proportional to 490,974,938.40, 736,462,407.60 and 490,974,938.40 is: 736,462,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,974,938.40 : 736,462,407.60 = 490,974,938.40 : x
  2. Step 2: Convert to fraction form
    490,974,938.40/736,462,407.60 = 490,974,938.40/x
  3. Step 3: Cross multiply
    490,974,938.40x = 736,462,407.60 × 490,974,938.40
  4. Step 4: Simplify right side
    490,974,938.40x = 361,584,585,205,325,696
  5. Step 5: Solve for x
    x = 361,584,585,205,325,696/490,974,938.40
  6. Step 6: Final answer
    x = 736,462,407.60

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Double scale
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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.