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Finding the Fourth Proportional to 612,119,746.95, 918,179,620.43 and 612,119,746.95

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Solution

The fourth proportional to 612,119,746.95, 918,179,620.43 and 612,119,746.95 is: 918,179,620.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,119,746.95 : 918,179,620.43 = 612,119,746.95 : x
  2. Step 2: Convert to fraction form
    612,119,746.95/918,179,620.43 = 612,119,746.95/x
  3. Step 3: Cross multiply
    612,119,746.95x = 918,179,620.43 × 612,119,746.95
  4. Step 4: Simplify right side
    612,119,746.95x = 562,035,876,909,198,080
  5. Step 5: Solve for x
    x = 562,035,876,909,198,080/612,119,746.95
  6. Step 6: Final answer
    x = 918,179,620.43

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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.