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Finding the Fourth Proportional to 1,017,996, 1,404,892.80 and 565,316.16

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Solution

The fourth proportional to 1,017,996, 1,404,892.80 and 565,316.16 is: 780,168.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017,996 : 1,404,892.80 = 565,316.16 : x
  2. Step 2: Convert to fraction form
    1,017,996/1,404,892.80 = 565,316.16/x
  3. Step 3: Cross multiply
    1,017,996x = 1,404,892.80 × 565,316.16
  4. Step 4: Simplify right side
    1,017,996x = 794,208,602,907.65
  5. Step 5: Solve for x
    x = 794,208,602,907.65/1,017,996
  6. Step 6: Final answer
    x = 780,168.69

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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.