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Finding the Fourth Proportional to 468,681,931.72, 703,139,794.89 and 330,776,916.76

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Solution

The fourth proportional to 468,681,931.72, 703,139,794.89 and 330,776,916.76 is: 496,247,876.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,681,931.72 : 703,139,794.89 = 330,776,916.76 : x
  2. Step 2: Convert to fraction form
    468,681,931.72/703,139,794.89 = 330,776,916.76/x
  3. Step 3: Cross multiply
    468,681,931.72x = 703,139,794.89 × 330,776,916.76
  4. Step 4: Simplify right side
    468,681,931.72x = 232,582,413,406,480,384
  5. Step 5: Solve for x
    x = 232,582,413,406,480,384/468,681,931.72
  6. Step 6: Final answer
    x = 496,247,876.58

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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.