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Finding the Fourth Proportional to 748,895,458.40, 1,121,831,533.20 and 748,895,458.40

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Solution

The fourth proportional to 748,895,458.40, 1,121,831,533.20 and 748,895,458.40 is: 1,121,831,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,895,458.40 : 1,121,831,533.20 = 748,895,458.40 : x
  2. Step 2: Convert to fraction form
    748,895,458.40/1,121,831,533.20 = 748,895,458.40/x
  3. Step 3: Cross multiply
    748,895,458.40x = 1,121,831,533.20 × 748,895,458.40
  4. Step 4: Simplify right side
    748,895,458.40x = 840,134,540,303,388,800
  5. Step 5: Solve for x
    x = 840,134,540,303,388,800/748,895,458.40
  6. Step 6: Final answer
    x = 1,121,831,533.20

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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.