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Finding the Fourth Proportional to 943,232,329.60, 1,413,504,801.60 and 695,656,931.20

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Solution

The fourth proportional to 943,232,329.60, 1,413,504,801.60 and 695,656,931.20 is: 1,042,494,390.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,232,329.60 : 1,413,504,801.60 = 695,656,931.20 : x
  2. Step 2: Convert to fraction form
    943,232,329.60/1,413,504,801.60 = 695,656,931.20/x
  3. Step 3: Cross multiply
    943,232,329.60x = 1,413,504,801.60 × 695,656,931.20
  4. Step 4: Simplify right side
    943,232,329.60x = 983,314,412,517,520,896
  5. Step 5: Solve for x
    x = 983,314,412,517,520,896/943,232,329.60
  6. Step 6: Final answer
    x = 1,042,494,390.47

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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.