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Finding the Fourth Proportional to 530,989.83, 732,762.35 and 289,272.57

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Solution

The fourth proportional to 530,989.83, 732,762.35 and 289,272.57 is: 399,194.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,989.83 : 732,762.35 = 289,272.57 : x
  2. Step 2: Convert to fraction form
    530,989.83/732,762.35 = 289,272.57/x
  3. Step 3: Cross multiply
    530,989.83x = 732,762.35 × 289,272.57
  4. Step 4: Simplify right side
    530,989.83x = 211,968,045,074.29
  5. Step 5: Solve for x
    x = 211,968,045,074.29/530,989.83
  6. Step 6: Final answer
    x = 399,194.17

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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.