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Finding the Fourth Proportional to 1,187,926.04, 1,637,752.08 and 943,721.06

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Solution

The fourth proportional to 1,187,926.04, 1,637,752.08 and 943,721.06 is: 1,301,075.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,926.04 : 1,637,752.08 = 943,721.06 : x
  2. Step 2: Convert to fraction form
    1,187,926.04/1,637,752.08 = 943,721.06/x
  3. Step 3: Cross multiply
    1,187,926.04x = 1,637,752.08 × 943,721.06
  4. Step 4: Simplify right side
    1,187,926.04x = 1,545,581,128,954.81
  5. Step 5: Solve for x
    x = 1,545,581,128,954.81/1,187,926.04
  6. Step 6: Final answer
    x = 1,301,075.22

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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.