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Finding the Fourth Proportional to 748,895,483.40, 1,121,831,570.70 and 748,895,483.40

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Solution

The fourth proportional to 748,895,483.40, 1,121,831,570.70 and 748,895,483.40 is: 1,121,831,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,895,483.40 : 1,121,831,570.70 = 748,895,483.40 : x
  2. Step 2: Convert to fraction form
    748,895,483.40/1,121,831,570.70 = 748,895,483.40/x
  3. Step 3: Cross multiply
    748,895,483.40x = 1,121,831,570.70 × 748,895,483.40
  4. Step 4: Simplify right side
    748,895,483.40x = 840,134,596,432,757,760
  5. Step 5: Solve for x
    x = 840,134,596,432,757,760/748,895,483.40
  6. Step 6: Final answer
    x = 1,121,831,570.70

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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.