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Finding the Fourth Proportional to 575,354.48, 793,960.32 and 320,656.48

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Solution

The fourth proportional to 575,354.48, 793,960.32 and 320,656.48 is: 442,489.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,354.48 : 793,960.32 = 320,656.48 : x
  2. Step 2: Convert to fraction form
    575,354.48/793,960.32 = 320,656.48/x
  3. Step 3: Cross multiply
    575,354.48x = 793,960.32 × 320,656.48
  4. Step 4: Simplify right side
    575,354.48x = 254,588,521,470.87
  5. Step 5: Solve for x
    x = 254,588,521,470.87/575,354.48
  6. Step 6: Final answer
    x = 442,489.86

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1.5x scale

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.