Home / 805,253.35-1,111,270.89-437,755.21

Finding the Fourth Proportional to 805,253.35, 1,111,270.89 and 437,755.21

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Solution

The fourth proportional to 805,253.35, 1,111,270.89 and 437,755.21 is: 604,113.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,253.35 : 1,111,270.89 = 437,755.21 : x
  2. Step 2: Convert to fraction form
    805,253.35/1,111,270.89 = 437,755.21/x
  3. Step 3: Cross multiply
    805,253.35x = 1,111,270.89 × 437,755.21
  4. Step 4: Simplify right side
    805,253.35x = 486,464,623,807.69
  5. Step 5: Solve for x
    x = 486,464,623,807.69/805,253.35
  6. Step 6: Final answer
    x = 604,113.75

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1.5x scale

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.