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Finding the Fourth Proportional to 554,527.04, 765,211.68 and 316,047.68

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Solution

The fourth proportional to 554,527.04, 765,211.68 and 316,047.68 is: 436,125.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,527.04 : 765,211.68 = 316,047.68 : x
  2. Step 2: Convert to fraction form
    554,527.04/765,211.68 = 316,047.68/x
  3. Step 3: Cross multiply
    554,527.04x = 765,211.68 × 316,047.68
  4. Step 4: Simplify right side
    554,527.04x = 241,843,376,172.90
  5. Step 5: Solve for x
    x = 241,843,376,172.90/554,527.04
  6. Step 6: Final answer
    x = 436,125.49

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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.