Home / 786,311.49-1,177,466.13-519,672.45

Finding the Fourth Proportional to 786,311.49, 1,177,466.13 and 519,672.45

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Solution

The fourth proportional to 786,311.49, 1,177,466.13 and 519,672.45 is: 778,186.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,311.49 : 1,177,466.13 = 519,672.45 : x
  2. Step 2: Convert to fraction form
    786,311.49/1,177,466.13 = 519,672.45/x
  3. Step 3: Cross multiply
    786,311.49x = 1,177,466.13 × 519,672.45
  4. Step 4: Simplify right side
    786,311.49x = 611,896,708,569.12
  5. Step 5: Solve for x
    x = 611,896,708,569.12/786,311.49
  6. Step 6: Final answer
    x = 778,186.15

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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.