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Finding the Fourth Proportional to 786,834,145.60, 1,103,180,235.20 and 786,834,145.60

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Solution

The fourth proportional to 786,834,145.60, 1,103,180,235.20 and 786,834,145.60 is: 1,103,180,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,834,145.60 : 1,103,180,235.20 = 786,834,145.60 : x
  2. Step 2: Convert to fraction form
    786,834,145.60/1,103,180,235.20 = 786,834,145.60/x
  3. Step 3: Cross multiply
    786,834,145.60x = 1,103,180,235.20 × 786,834,145.60
  4. Step 4: Simplify right side
    786,834,145.60x = 868,019,877,806,399,104
  5. Step 5: Solve for x
    x = 868,019,877,806,399,104/786,834,145.60
  6. Step 6: Final answer
    x = 1,103,180,235.20

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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.