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Finding the Fourth Proportional to 343,553.28, 514,854.72 and 248,021.76

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Solution

The fourth proportional to 343,553.28, 514,854.72 and 248,021.76 is: 371,689.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,553.28 : 514,854.72 = 248,021.76 : x
  2. Step 2: Convert to fraction form
    343,553.28/514,854.72 = 248,021.76/x
  3. Step 3: Cross multiply
    343,553.28x = 514,854.72 × 248,021.76
  4. Step 4: Simplify right side
    343,553.28x = 127,695,173,798.71
  5. Step 5: Solve for x
    x = 127,695,173,798.71/343,553.28
  6. Step 6: Final answer
    x = 371,689.58

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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.