Home / 1,223,615.95-1,688,591.82-679,736.95

Finding the Fourth Proportional to 1,223,615.95, 1,688,591.82 and 679,736.95

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Solution

The fourth proportional to 1,223,615.95, 1,688,591.82 and 679,736.95 is: 938,038.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,615.95 : 1,688,591.82 = 679,736.95 : x
  2. Step 2: Convert to fraction form
    1,223,615.95/1,688,591.82 = 679,736.95/x
  3. Step 3: Cross multiply
    1,223,615.95x = 1,688,591.82 × 679,736.95
  4. Step 4: Simplify right side
    1,223,615.95x = 1,147,798,253,521.75
  5. Step 5: Solve for x
    x = 1,147,798,253,521.75/1,223,615.95
  6. Step 6: Final answer
    x = 938,038.00

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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.