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Finding the Fourth Proportional to 355,605.40, 533,484.90 and 106,312.60

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Solution

The fourth proportional to 355,605.40, 533,484.90 and 106,312.60 is: 159,491.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,605.40 : 533,484.90 = 106,312.60 : x
  2. Step 2: Convert to fraction form
    355,605.40/533,484.90 = 106,312.60/x
  3. Step 3: Cross multiply
    355,605.40x = 533,484.90 × 106,312.60
  4. Step 4: Simplify right side
    355,605.40x = 56,716,166,779.74
  5. Step 5: Solve for x
    x = 56,716,166,779.74/355,605.40
  6. Step 6: Final answer
    x = 159,491.86

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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.