Home / 540,730.75-811,583.64-288,221.55

Finding the Fourth Proportional to 540,730.75, 811,583.64 and 288,221.55

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Solution

The fourth proportional to 540,730.75, 811,583.64 and 288,221.55 is: 432,592.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,730.75 : 811,583.64 = 288,221.55 : x
  2. Step 2: Convert to fraction form
    540,730.75/811,583.64 = 288,221.55/x
  3. Step 3: Cross multiply
    540,730.75x = 811,583.64 × 288,221.55
  4. Step 4: Simplify right side
    540,730.75x = 233,915,894,675.44
  5. Step 5: Solve for x
    x = 233,915,894,675.44/540,730.75
  6. Step 6: Final answer
    x = 432,592.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.