Home / 1,186,300.92-1,637,103.36-642,437.16

Finding the Fourth Proportional to 1,186,300.92, 1,637,103.36 and 642,437.16

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Solution

The fourth proportional to 1,186,300.92, 1,637,103.36 and 642,437.16 is: 886,567.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,300.92 : 1,637,103.36 = 642,437.16 : x
  2. Step 2: Convert to fraction form
    1,186,300.92/1,637,103.36 = 642,437.16/x
  3. Step 3: Cross multiply
    1,186,300.92x = 1,637,103.36 × 642,437.16
  4. Step 4: Simplify right side
    1,186,300.92x = 1,051,736,033,224.86
  5. Step 5: Solve for x
    x = 1,051,736,033,224.86/1,186,300.92
  6. Step 6: Final answer
    x = 886,567.66

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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.