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Finding the Fourth Proportional to 352,579,810.30, 528,869,715.45 and 352,579,810.30

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Solution

The fourth proportional to 352,579,810.30, 528,869,715.45 and 352,579,810.30 is: 528,869,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,579,810.30 : 528,869,715.45 = 352,579,810.30 : x
  2. Step 2: Convert to fraction form
    352,579,810.30/528,869,715.45 = 352,579,810.30/x
  3. Step 3: Cross multiply
    352,579,810.30x = 528,869,715.45 × 352,579,810.30
  4. Step 4: Simplify right side
    352,579,810.30x = 186,468,783,946,775,968
  5. Step 5: Solve for x
    x = 186,468,783,946,775,968/352,579,810.30
  6. Step 6: Final answer
    x = 528,869,715.45

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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.