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Finding the Fourth Proportional to 586,070.88, 879,824 and 386,558.08

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Solution

The fourth proportional to 586,070.88, 879,824 and 386,558.08 is: 580,310.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,070.88 : 879,824 = 386,558.08 : x
  2. Step 2: Convert to fraction form
    586,070.88/879,824 = 386,558.08/x
  3. Step 3: Cross multiply
    586,070.88x = 879,824 × 386,558.08
  4. Step 4: Simplify right side
    586,070.88x = 340,103,076,177.92
  5. Step 5: Solve for x
    x = 340,103,076,177.92/586,070.88
  6. Step 6: Final answer
    x = 580,310.48

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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.