Home / 1,291,468.80-1,937,203.20-392,908.80

Finding the Fourth Proportional to 1,291,468.80, 1,937,203.20 and 392,908.80

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Solution

The fourth proportional to 1,291,468.80, 1,937,203.20 and 392,908.80 is: 589,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,468.80 : 1,937,203.20 = 392,908.80 : x
  2. Step 2: Convert to fraction form
    1,291,468.80/1,937,203.20 = 392,908.80/x
  3. Step 3: Cross multiply
    1,291,468.80x = 1,937,203.20 × 392,908.80
  4. Step 4: Simplify right side
    1,291,468.80x = 761,144,184,668.16
  5. Step 5: Solve for x
    x = 761,144,184,668.16/1,291,468.80
  6. Step 6: Final answer
    x = 589,363.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.