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Finding the Fourth Proportional to 514,828.80, 772,243.20 and 346,867.20

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Solution

The fourth proportional to 514,828.80, 772,243.20 and 346,867.20 is: 520,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,828.80 : 772,243.20 = 346,867.20 : x
  2. Step 2: Convert to fraction form
    514,828.80/772,243.20 = 346,867.20/x
  3. Step 3: Cross multiply
    514,828.80x = 772,243.20 × 346,867.20
  4. Step 4: Simplify right side
    514,828.80x = 267,865,836,503.04
  5. Step 5: Solve for x
    x = 267,865,836,503.04/514,828.80
  6. Step 6: Final answer
    x = 520,300.80

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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.