Home / 1,291,805.40-1,937,484.54-393,029.40

Finding the Fourth Proportional to 1,291,805.40, 1,937,484.54 and 393,029.40

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Solution

The fourth proportional to 1,291,805.40, 1,937,484.54 and 393,029.40 is: 589,476.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,805.40 : 1,937,484.54 = 393,029.40 : x
  2. Step 2: Convert to fraction form
    1,291,805.40/1,937,484.54 = 393,029.40/x
  3. Step 3: Cross multiply
    1,291,805.40x = 1,937,484.54 × 393,029.40
  4. Step 4: Simplify right side
    1,291,805.40x = 761,488,386,265.48
  5. Step 5: Solve for x
    x = 761,488,386,265.48/1,291,805.40
  6. Step 6: Final answer
    x = 589,476.08

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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.