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Finding the Fourth Proportional to 352,584,430.30, 528,876,645.45 and 352,584,430.30

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Solution

The fourth proportional to 352,584,430.30, 528,876,645.45 and 352,584,430.30 is: 528,876,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,584,430.30 : 528,876,645.45 = 352,584,430.30 : x
  2. Step 2: Convert to fraction form
    352,584,430.30/528,876,645.45 = 352,584,430.30/x
  3. Step 3: Cross multiply
    352,584,430.30x = 528,876,645.45 × 352,584,430.30
  4. Step 4: Simplify right side
    352,584,430.30x = 186,473,670,734,963,328
  5. Step 5: Solve for x
    x = 186,473,670,734,963,328/352,584,430.30
  6. Step 6: Final answer
    x = 528,876,645.45

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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.