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Finding the Fourth Proportional to 527,070.81, 790,641.45 and 185,473.56

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Solution

The fourth proportional to 527,070.81, 790,641.45 and 185,473.56 is: 278,222.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,070.81 : 790,641.45 = 185,473.56 : x
  2. Step 2: Convert to fraction form
    527,070.81/790,641.45 = 185,473.56/x
  3. Step 3: Cross multiply
    527,070.81x = 790,641.45 × 185,473.56
  4. Step 4: Simplify right side
    527,070.81x = 146,643,084,415.06
  5. Step 5: Solve for x
    x = 146,643,084,415.06/527,070.81
  6. Step 6: Final answer
    x = 278,222.74

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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.