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Finding the Fourth Proportional to 898,184.88, 1,239,499.80 and 495,776.88

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Solution

The fourth proportional to 898,184.88, 1,239,499.80 and 495,776.88 is: 684,174.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,184.88 : 1,239,499.80 = 495,776.88 : x
  2. Step 2: Convert to fraction form
    898,184.88/1,239,499.80 = 495,776.88/x
  3. Step 3: Cross multiply
    898,184.88x = 1,239,499.80 × 495,776.88
  4. Step 4: Simplify right side
    898,184.88x = 614,515,343,604.62
  5. Step 5: Solve for x
    x = 614,515,343,604.62/898,184.88
  6. Step 6: Final answer
    x = 684,174.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.