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Finding the Fourth Proportional to 615,922.20, 923,192.10 and 349,810.20

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Solution

The fourth proportional to 615,922.20, 923,192.10 and 349,810.20 is: 524,322.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,922.20 : 923,192.10 = 349,810.20 : x
  2. Step 2: Convert to fraction form
    615,922.20/923,192.10 = 349,810.20/x
  3. Step 3: Cross multiply
    615,922.20x = 923,192.10 × 349,810.20
  4. Step 4: Simplify right side
    615,922.20x = 322,942,013,139.42
  5. Step 5: Solve for x
    x = 322,942,013,139.42/615,922.20
  6. Step 6: Final answer
    x = 524,322.74

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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.