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Finding the Fourth Proportional to 1,259,714,681.80, 1,889,572,022.70 and 741,878,571.40

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Solution

The fourth proportional to 1,259,714,681.80, 1,889,572,022.70 and 741,878,571.40 is: 1,112,817,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,714,681.80 : 1,889,572,022.70 = 741,878,571.40 : x
  2. Step 2: Convert to fraction form
    1,259,714,681.80/1,889,572,022.70 = 741,878,571.40/x
  3. Step 3: Cross multiply
    1,259,714,681.80x = 1,889,572,022.70 × 741,878,571.40
  4. Step 4: Simplify right side
    1,259,714,681.80x = 1,401,832,992,758,084,352
  5. Step 5: Solve for x
    x = 1,401,832,992,758,084,352/1,259,714,681.80
  6. Step 6: Final answer
    x = 1,112,817,857.10

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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.