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Finding the Fourth Proportional to 304,870.30, 457,305.45 and 83,254.30

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Solution

The fourth proportional to 304,870.30, 457,305.45 and 83,254.30 is: 124,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,870.30 : 457,305.45 = 83,254.30 : x
  2. Step 2: Convert to fraction form
    304,870.30/457,305.45 = 83,254.30/x
  3. Step 3: Cross multiply
    304,870.30x = 457,305.45 × 83,254.30
  4. Step 4: Simplify right side
    304,870.30x = 38,072,645,125.94
  5. Step 5: Solve for x
    x = 38,072,645,125.94/304,870.30
  6. Step 6: Final answer
    x = 124,881.45

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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.