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Finding the Fourth Proportional to 586,656,992.80, 879,985,489.20 and 314,559,200.80

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Solution

The fourth proportional to 586,656,992.80, 879,985,489.20 and 314,559,200.80 is: 471,838,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,656,992.80 : 879,985,489.20 = 314,559,200.80 : x
  2. Step 2: Convert to fraction form
    586,656,992.80/879,985,489.20 = 314,559,200.80/x
  3. Step 3: Cross multiply
    586,656,992.80x = 879,985,489.20 × 314,559,200.80
  4. Step 4: Simplify right side
    586,656,992.80x = 276,807,532,198,349,056
  5. Step 5: Solve for x
    x = 276,807,532,198,349,056/586,656,992.80
  6. Step 6: Final answer
    x = 471,838,801.20

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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.