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Finding the Fourth Proportional to 575,039.85, 793,690.22 and 357,412.88

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Solution

The fourth proportional to 575,039.85, 793,690.22 and 357,412.88 is: 493,313.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,039.85 : 793,690.22 = 357,412.88 : x
  2. Step 2: Convert to fraction form
    575,039.85/793,690.22 = 357,412.88/x
  3. Step 3: Cross multiply
    575,039.85x = 793,690.22 × 357,412.88
  4. Step 4: Simplify right side
    575,039.85x = 283,675,101,602.52
  5. Step 5: Solve for x
    x = 283,675,101,602.52/575,039.85
  6. Step 6: Final answer
    x = 493,313.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.