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Finding the Fourth Proportional to 530,495.33, 732,083.64 and 288,779.71

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Solution

The fourth proportional to 530,495.33, 732,083.64 and 288,779.71 is: 398,516.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,495.33 : 732,083.64 = 288,779.71 : x
  2. Step 2: Convert to fraction form
    530,495.33/732,083.64 = 288,779.71/x
  3. Step 3: Cross multiply
    530,495.33x = 732,083.64 × 288,779.71
  4. Step 4: Simplify right side
    530,495.33x = 211,410,899,714.47
  5. Step 5: Solve for x
    x = 211,410,899,714.47/530,495.33
  6. Step 6: Final answer
    x = 398,516.04

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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.