Home / 933,689.09-1,288,512.90-520,253.82

Finding the Fourth Proportional to 933,689.09, 1,288,512.90 and 520,253.82

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Solution

The fourth proportional to 933,689.09, 1,288,512.90 and 520,253.82 is: 717,962.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,689.09 : 1,288,512.90 = 520,253.82 : x
  2. Step 2: Convert to fraction form
    933,689.09/1,288,512.90 = 520,253.82/x
  3. Step 3: Cross multiply
    933,689.09x = 1,288,512.90 × 520,253.82
  4. Step 4: Simplify right side
    933,689.09x = 670,353,758,344.28
  5. Step 5: Solve for x
    x = 670,353,758,344.28/933,689.09
  6. Step 6: Final answer
    x = 717,962.50

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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.