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Finding the Fourth Proportional to 575,263.63, 793,890.93 and 320,616.64

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Solution

The fourth proportional to 575,263.63, 793,890.93 and 320,616.64 is: 442,466.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,263.63 : 793,890.93 = 320,616.64 : x
  2. Step 2: Convert to fraction form
    575,263.63/793,890.93 = 320,616.64/x
  3. Step 3: Cross multiply
    575,263.63x = 793,890.93 × 320,616.64
  4. Step 4: Simplify right side
    575,263.63x = 254,534,642,503.08
  5. Step 5: Solve for x
    x = 254,534,642,503.08/575,263.63
  6. Step 6: Final answer
    x = 442,466.08

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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.