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Finding the Fourth Proportional to 477,942,399.70, 716,913,599.55 and 477,942,399.70

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Solution

The fourth proportional to 477,942,399.70, 716,913,599.55 and 477,942,399.70 is: 716,913,599.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,942,399.70 : 716,913,599.55 = 477,942,399.70 : x
  2. Step 2: Convert to fraction form
    477,942,399.70/716,913,599.55 = 477,942,399.70/x
  3. Step 3: Cross multiply
    477,942,399.70x = 716,913,599.55 × 477,942,399.70
  4. Step 4: Simplify right side
    477,942,399.70x = 342,643,406,146,491,840
  5. Step 5: Solve for x
    x = 342,643,406,146,491,840/477,942,399.70
  6. Step 6: Final answer
    x = 716,913,599.55

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Double scale
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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.