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Finding the Fourth Proportional to 554,865,732.80, 832,046,656.80 and 209,704,644.80

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Solution

The fourth proportional to 554,865,732.80, 832,046,656.80 and 209,704,644.80 is: 314,461,748.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,865,732.80 : 832,046,656.80 = 209,704,644.80 : x
  2. Step 2: Convert to fraction form
    554,865,732.80/832,046,656.80 = 209,704,644.80/x
  3. Step 3: Cross multiply
    554,865,732.80x = 832,046,656.80 × 209,704,644.80
  4. Step 4: Simplify right side
    554,865,732.80x = 174,484,048,621,271,520
  5. Step 5: Solve for x
    x = 174,484,048,621,271,520/554,865,732.80
  6. Step 6: Final answer
    x = 314,461,748.68

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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.