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Finding the Fourth Proportional to 569,936,259.87, 786,513,552.71 and 309,175,875.87

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Solution

The fourth proportional to 569,936,259.87, 786,513,552.71 and 309,175,875.87 is: 426,663,530.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,936,259.87 : 786,513,552.71 = 309,175,875.87 : x
  2. Step 2: Convert to fraction form
    569,936,259.87/786,513,552.71 = 309,175,875.87/x
  3. Step 3: Cross multiply
    569,936,259.87x = 786,513,552.71 × 309,175,875.87
  4. Step 4: Simplify right side
    569,936,259.87x = 243,171,016,541,193,792
  5. Step 5: Solve for x
    x = 243,171,016,541,193,792/569,936,259.87
  6. Step 6: Final answer
    x = 426,663,530.05

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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.