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Finding the Fourth Proportional to 554,799,657.99, 765,333,259.68 and 343,038,797.11

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Solution

The fourth proportional to 554,799,657.99, 765,333,259.68 and 343,038,797.11 is: 473,214,063.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,799,657.99 : 765,333,259.68 = 343,038,797.11 : x
  2. Step 2: Convert to fraction form
    554,799,657.99/765,333,259.68 = 343,038,797.11/x
  3. Step 3: Cross multiply
    554,799,657.99x = 765,333,259.68 × 343,038,797.11
  4. Step 4: Simplify right side
    554,799,657.99x = 262,539,000,788,902,464
  5. Step 5: Solve for x
    x = 262,539,000,788,902,464/554,799,657.99
  6. Step 6: Final answer
    x = 473,214,063.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.