Home / 1,389,437.69-1,917,424.01-753,533.69

Finding the Fourth Proportional to 1,389,437.69, 1,917,424.01 and 753,533.69

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Solution

The fourth proportional to 1,389,437.69, 1,917,424.01 and 753,533.69 is: 1,039,876.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,437.69 : 1,917,424.01 = 753,533.69 : x
  2. Step 2: Convert to fraction form
    1,389,437.69/1,917,424.01 = 753,533.69/x
  3. Step 3: Cross multiply
    1,389,437.69x = 1,917,424.01 × 753,533.69
  4. Step 4: Simplify right side
    1,389,437.69x = 1,444,843,589,549.90
  5. Step 5: Solve for x
    x = 1,444,843,589,549.90/1,389,437.69
  6. Step 6: Final answer
    x = 1,039,876.49

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1.5x scale

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.