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Finding the Fourth Proportional to 425,088,145.60, 636,624,448.80 and 425,088,145.60

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Solution

The fourth proportional to 425,088,145.60, 636,624,448.80 and 425,088,145.60 is: 636,624,448.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,088,145.60 : 636,624,448.80 = 425,088,145.60 : x
  2. Step 2: Convert to fraction form
    425,088,145.60/636,624,448.80 = 425,088,145.60/x
  3. Step 3: Cross multiply
    425,088,145.60x = 636,624,448.80 × 425,088,145.60
  4. Step 4: Simplify right side
    425,088,145.60x = 270,621,506,384,014,144
  5. Step 5: Solve for x
    x = 270,621,506,384,014,144/425,088,145.60
  6. Step 6: Final answer
    x = 636,624,448.80

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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.