Home / 1,287,036.51-1,776,110.58-714,075.36

Finding the Fourth Proportional to 1,287,036.51, 1,776,110.58 and 714,075.36

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Solution

The fourth proportional to 1,287,036.51, 1,776,110.58 and 714,075.36 is: 985,424.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,036.51 : 1,776,110.58 = 714,075.36 : x
  2. Step 2: Convert to fraction form
    1,287,036.51/1,776,110.58 = 714,075.36/x
  3. Step 3: Cross multiply
    1,287,036.51x = 1,776,110.58 × 714,075.36
  4. Step 4: Simplify right side
    1,287,036.51x = 1,268,276,801,813.31
  5. Step 5: Solve for x
    x = 1,268,276,801,813.31/1,287,036.51
  6. Step 6: Final answer
    x = 985,424.11

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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.