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Finding the Fourth Proportional to 560,812.16, 773,964.94 and 319,104.92

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Solution

The fourth proportional to 560,812.16, 773,964.94 and 319,104.92 is: 440,389.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,812.16 : 773,964.94 = 319,104.92 : x
  2. Step 2: Convert to fraction form
    560,812.16/773,964.94 = 319,104.92/x
  3. Step 3: Cross multiply
    560,812.16x = 773,964.94 × 319,104.92
  4. Step 4: Simplify right side
    560,812.16x = 246,976,020,261.51
  5. Step 5: Solve for x
    x = 246,976,020,261.51/560,812.16
  6. Step 6: Final answer
    x = 440,389.92

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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.