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Finding the Fourth Proportional to 846,612,000.90, 1,269,918,001.35 and 846,612,000.90

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Solution

The fourth proportional to 846,612,000.90, 1,269,918,001.35 and 846,612,000.90 is: 1,269,918,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,612,000.90 : 1,269,918,001.35 = 846,612,000.90 : x
  2. Step 2: Convert to fraction form
    846,612,000.90/1,269,918,001.35 = 846,612,000.90/x
  3. Step 3: Cross multiply
    846,612,000.90x = 1,269,918,001.35 × 846,612,000.90
  4. Step 4: Simplify right side
    846,612,000.90x = 1,075,127,820,101,852,288
  5. Step 5: Solve for x
    x = 1,075,127,820,101,852,288/846,612,000.90
  6. Step 6: Final answer
    x = 1,269,918,001.35

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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.