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Finding the Fourth Proportional to 857,750,588.40, 1,286,625,882.60 and 857,750,588.40

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Solution

The fourth proportional to 857,750,588.40, 1,286,625,882.60 and 857,750,588.40 is: 1,286,625,882.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,750,588.40 : 1,286,625,882.60 = 857,750,588.40 : x
  2. Step 2: Convert to fraction form
    857,750,588.40/1,286,625,882.60 = 857,750,588.40/x
  3. Step 3: Cross multiply
    857,750,588.40x = 1,286,625,882.60 × 857,750,588.40
  4. Step 4: Simplify right side
    857,750,588.40x = 1,103,604,107,850,819,200
  5. Step 5: Solve for x
    x = 1,103,604,107,850,819,200/857,750,588.40
  6. Step 6: Final answer
    x = 1,286,625,882.60

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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.