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Finding the Fourth Proportional to 522,771,208.80, 784,156,813.20 and 522,771,208.80

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Solution

The fourth proportional to 522,771,208.80, 784,156,813.20 and 522,771,208.80 is: 784,156,813.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,771,208.80 : 784,156,813.20 = 522,771,208.80 : x
  2. Step 2: Convert to fraction form
    522,771,208.80/784,156,813.20 = 522,771,208.80/x
  3. Step 3: Cross multiply
    522,771,208.80x = 784,156,813.20 × 522,771,208.80
  4. Step 4: Simplify right side
    522,771,208.80x = 409,934,605,125,319,808
  5. Step 5: Solve for x
    x = 409,934,605,125,319,808/522,771,208.80
  6. Step 6: Final answer
    x = 784,156,813.20

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Similar ratio
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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.