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Finding the Fourth Proportional to 430,245.16, 593,491.62 and 357,234.76

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Solution

The fourth proportional to 430,245.16, 593,491.62 and 357,234.76 is: 492,779.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,245.16 : 593,491.62 = 357,234.76 : x
  2. Step 2: Convert to fraction form
    430,245.16/593,491.62 = 357,234.76/x
  3. Step 3: Cross multiply
    430,245.16x = 593,491.62 × 357,234.76
  4. Step 4: Simplify right side
    430,245.16x = 212,015,836,432.71
  5. Step 5: Solve for x
    x = 212,015,836,432.71/430,245.16
  6. Step 6: Final answer
    x = 492,779.13

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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.