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Finding the Fourth Proportional to 1,010,990,648.10, 1,516,485,972.15 and 1,010,990,648.10

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Solution

The fourth proportional to 1,010,990,648.10, 1,516,485,972.15 and 1,010,990,648.10 is: 1,516,485,972.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,990,648.10 : 1,516,485,972.15 = 1,010,990,648.10 : x
  2. Step 2: Convert to fraction form
    1,010,990,648.10/1,516,485,972.15 = 1,010,990,648.10/x
  3. Step 3: Cross multiply
    1,010,990,648.10x = 1,516,485,972.15 × 1,010,990,648.10
  4. Step 4: Simplify right side
    1,010,990,648.10x = 1,533,153,135,818,487,296
  5. Step 5: Solve for x
    x = 1,533,153,135,818,487,296/1,010,990,648.10
  6. Step 6: Final answer
    x = 1,516,485,972.15

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Double scale
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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.