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Finding the Fourth Proportional to 586,188, 879,280.60 and 385,053.68

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Solution

The fourth proportional to 586,188, 879,280.60 and 385,053.68 is: 577,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,188 : 879,280.60 = 385,053.68 : x
  2. Step 2: Convert to fraction form
    586,188/879,280.60 = 385,053.68/x
  3. Step 3: Cross multiply
    586,188x = 879,280.60 × 385,053.68
  4. Step 4: Simplify right side
    586,188x = 338,570,230,782.61
  5. Step 5: Solve for x
    x = 338,570,230,782.61/586,188
  6. Step 6: Final answer
    x = 577,579.60

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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.