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Finding the Fourth Proportional to 1,208,792,645.08, 1,813,559,011.08 and 619,000,479.72

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Solution

The fourth proportional to 1,208,792,645.08, 1,813,559,011.08 and 619,000,479.72 is: 928,690,212.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,792,645.08 : 1,813,559,011.08 = 619,000,479.72 : x
  2. Step 2: Convert to fraction form
    1,208,792,645.08/1,813,559,011.08 = 619,000,479.72/x
  3. Step 3: Cross multiply
    1,208,792,645.08x = 1,813,559,011.08 × 619,000,479.72
  4. Step 4: Simplify right side
    1,208,792,645.08x = 1,122,593,897,859,048,832
  5. Step 5: Solve for x
    x = 1,122,593,897,859,048,832/1,208,792,645.08
  6. Step 6: Final answer
    x = 928,690,212.03

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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.