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Finding the Fourth Proportional to 1,431,834.04, 1,975,938.79 and 843,159.16

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Solution

The fourth proportional to 1,431,834.04, 1,975,938.79 and 843,159.16 is: 1,163,564.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,834.04 : 1,975,938.79 = 843,159.16 : x
  2. Step 2: Convert to fraction form
    1,431,834.04/1,975,938.79 = 843,159.16/x
  3. Step 3: Cross multiply
    1,431,834.04x = 1,975,938.79 × 843,159.16
  4. Step 4: Simplify right side
    1,431,834.04x = 1,666,030,886,172.02
  5. Step 5: Solve for x
    x = 1,666,030,886,172.02/1,431,834.04
  6. Step 6: Final answer
    x = 1,163,564.24

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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.