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Finding the Fourth Proportional to 520,522.38, 718,033.95 and 359,461.98

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Solution

The fourth proportional to 520,522.38, 718,033.95 and 359,461.98 is: 495,859.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,522.38 : 718,033.95 = 359,461.98 : x
  2. Step 2: Convert to fraction form
    520,522.38/718,033.95 = 359,461.98/x
  3. Step 3: Cross multiply
    520,522.38x = 718,033.95 × 359,461.98
  4. Step 4: Simplify right side
    520,522.38x = 258,105,905,374.22
  5. Step 5: Solve for x
    x = 258,105,905,374.22/520,522.38
  6. Step 6: Final answer
    x = 495,859.38

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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.