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Finding the Fourth Proportional to 520,526.50, 776,414.21 and 472,689.52

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Solution

The fourth proportional to 520,526.50, 776,414.21 and 472,689.52 is: 705,060.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,526.50 : 776,414.21 = 472,689.52 : x
  2. Step 2: Convert to fraction form
    520,526.50/776,414.21 = 472,689.52/x
  3. Step 3: Cross multiply
    520,526.50x = 776,414.21 × 472,689.52
  4. Step 4: Simplify right side
    520,526.50x = 367,002,860,246.08
  5. Step 5: Solve for x
    x = 367,002,860,246.08/520,526.50
  6. Step 6: Final answer
    x = 705,060.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.