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Finding the Fourth Proportional to 384,457.66, 530,435.64 and 223,281.64

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Solution

The fourth proportional to 384,457.66, 530,435.64 and 223,281.64 is: 308,061.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,457.66 : 530,435.64 = 223,281.64 : x
  2. Step 2: Convert to fraction form
    384,457.66/530,435.64 = 223,281.64/x
  3. Step 3: Cross multiply
    384,457.66x = 530,435.64 × 223,281.64
  4. Step 4: Simplify right side
    384,457.66x = 118,436,539,613.65
  5. Step 5: Solve for x
    x = 118,436,539,613.65/384,457.66
  6. Step 6: Final answer
    x = 308,061.33

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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.