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Finding the Fourth Proportional to 384,552.36, 530,679.24 and 223,501.68

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Solution

The fourth proportional to 384,552.36, 530,679.24 and 223,501.68 is: 308,430.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,552.36 : 530,679.24 = 223,501.68 : x
  2. Step 2: Convert to fraction form
    384,552.36/530,679.24 = 223,501.68/x
  3. Step 3: Cross multiply
    384,552.36x = 530,679.24 × 223,501.68
  4. Step 4: Simplify right side
    384,552.36x = 118,607,701,681.12
  5. Step 5: Solve for x
    x = 118,607,701,681.12/384,552.36
  6. Step 6: Final answer
    x = 308,430.57

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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.