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Finding the Fourth Proportional to 586,188.48, 879,281.36 and 385,054.20

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Solution

The fourth proportional to 586,188.48, 879,281.36 and 385,054.20 is: 577,580.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,188.48 : 879,281.36 = 385,054.20 : x
  2. Step 2: Convert to fraction form
    586,188.48/879,281.36 = 385,054.20/x
  3. Step 3: Cross multiply
    586,188.48x = 879,281.36 × 385,054.20
  4. Step 4: Simplify right side
    586,188.48x = 338,570,980,649.71
  5. Step 5: Solve for x
    x = 338,570,980,649.71/586,188.48
  6. Step 6: Final answer
    x = 577,580.41

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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.