Home / 1,005,871.83-1,388,075.43-553,162.83

Finding the Fourth Proportional to 1,005,871.83, 1,388,075.43 and 553,162.83

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Solution

The fourth proportional to 1,005,871.83, 1,388,075.43 and 553,162.83 is: 763,349.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,871.83 : 1,388,075.43 = 553,162.83 : x
  2. Step 2: Convert to fraction form
    1,005,871.83/1,388,075.43 = 553,162.83/x
  3. Step 3: Cross multiply
    1,005,871.83x = 1,388,075.43 × 553,162.83
  4. Step 4: Simplify right side
    1,005,871.83x = 767,831,733,112.27
  5. Step 5: Solve for x
    x = 767,831,733,112.27/1,005,871.83
  6. Step 6: Final answer
    x = 763,349.47

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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.