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Finding the Fourth Proportional to 477,949,061.40, 715,648,133.70 and 477,949,061.40

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Solution

The fourth proportional to 477,949,061.40, 715,648,133.70 and 477,949,061.40 is: 715,648,133.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,949,061.40 : 715,648,133.70 = 477,949,061.40 : x
  2. Step 2: Convert to fraction form
    477,949,061.40/715,648,133.70 = 477,949,061.40/x
  3. Step 3: Cross multiply
    477,949,061.40x = 715,648,133.70 × 477,949,061.40
  4. Step 4: Simplify right side
    477,949,061.40x = 342,043,353,794,576,704
  5. Step 5: Solve for x
    x = 342,043,353,794,576,704/477,949,061.40
  6. Step 6: Final answer
    x = 715,648,133.70

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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.