Home / 769,915.84-1,062,507.36-430,398.40

Finding the Fourth Proportional to 769,915.84, 1,062,507.36 and 430,398.40

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Solution

The fourth proportional to 769,915.84, 1,062,507.36 and 430,398.40 is: 593,962.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,915.84 : 1,062,507.36 = 430,398.40 : x
  2. Step 2: Convert to fraction form
    769,915.84/1,062,507.36 = 430,398.40/x
  3. Step 3: Cross multiply
    769,915.84x = 1,062,507.36 × 430,398.40
  4. Step 4: Simplify right side
    769,915.84x = 457,301,467,732.22
  5. Step 5: Solve for x
    x = 457,301,467,732.22/769,915.84
  6. Step 6: Final answer
    x = 593,962.93

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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.