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Finding the Fourth Proportional to 1,705,007,672.40, 2,389,429,388.40 and 1,705,007,672.40

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Solution

The fourth proportional to 1,705,007,672.40, 2,389,429,388.40 and 1,705,007,672.40 is: 2,389,429,388.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705,007,672.40 : 2,389,429,388.40 = 1,705,007,672.40 : x
  2. Step 2: Convert to fraction form
    1,705,007,672.40/2,389,429,388.40 = 1,705,007,672.40/x
  3. Step 3: Cross multiply
    1,705,007,672.40x = 2,389,429,388.40 × 1,705,007,672.40
  4. Step 4: Simplify right side
    1,705,007,672.40x = 4,073,995,439,880,039,936
  5. Step 5: Solve for x
    x = 4,073,995,439,880,039,936/1,705,007,672.40
  6. Step 6: Final answer
    x = 2,389,429,388.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.