Home / 1,287,381.79-1,776,526.99-714,416.95

Finding the Fourth Proportional to 1,287,381.79, 1,776,526.99 and 714,416.95

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Solution

The fourth proportional to 1,287,381.79, 1,776,526.99 and 714,416.95 is: 985,862.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,381.79 : 1,776,526.99 = 714,416.95 : x
  2. Step 2: Convert to fraction form
    1,287,381.79/1,776,526.99 = 714,416.95/x
  3. Step 3: Cross multiply
    1,287,381.79x = 1,776,526.99 × 714,416.95
  4. Step 4: Simplify right side
    1,287,381.79x = 1,269,180,993,788.48
  5. Step 5: Solve for x
    x = 1,269,180,993,788.48/1,287,381.79
  6. Step 6: Final answer
    x = 985,862.16

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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.