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Finding the Fourth Proportional to 1,355,036.04, 1,869,949.53 and 751,424.04

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Solution

The fourth proportional to 1,355,036.04, 1,869,949.53 and 751,424.04 is: 1,036,965.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,036.04 : 1,869,949.53 = 751,424.04 : x
  2. Step 2: Convert to fraction form
    1,355,036.04/1,869,949.53 = 751,424.04/x
  3. Step 3: Cross multiply
    1,355,036.04x = 1,869,949.53 × 751,424.04
  4. Step 4: Simplify right side
    1,355,036.04x = 1,405,125,030,428.70
  5. Step 5: Solve for x
    x = 1,405,125,030,428.70/1,355,036.04
  6. Step 6: Final answer
    x = 1,036,965.06

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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.