Home / 769,531.84-1,061,948.76-430,000.88

Finding the Fourth Proportional to 769,531.84, 1,061,948.76 and 430,000.88

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Solution

The fourth proportional to 769,531.84, 1,061,948.76 and 430,000.88 is: 593,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,531.84 : 1,061,948.76 = 430,000.88 : x
  2. Step 2: Convert to fraction form
    769,531.84/1,061,948.76 = 430,000.88/x
  3. Step 3: Cross multiply
    769,531.84x = 1,061,948.76 × 430,000.88
  4. Step 4: Simplify right side
    769,531.84x = 456,638,901,314.91
  5. Step 5: Solve for x
    x = 456,638,901,314.91/769,531.84
  6. Step 6: Final answer
    x = 593,398.32

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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.