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Finding the Fourth Proportional to 575,390.20, 794,048.94 and 320,713.96

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Solution

The fourth proportional to 575,390.20, 794,048.94 and 320,713.96 is: 442,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,390.20 : 794,048.94 = 320,713.96 : x
  2. Step 2: Convert to fraction form
    575,390.20/794,048.94 = 320,713.96/x
  3. Step 3: Cross multiply
    575,390.20x = 794,048.94 × 320,713.96
  4. Step 4: Simplify right side
    575,390.20x = 254,662,579,981.20
  5. Step 5: Solve for x
    x = 254,662,579,981.20/575,390.20
  6. Step 6: Final answer
    x = 442,591.10

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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.