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Finding the Fourth Proportional to 530,615.44, 732,012.72 and 358,478.08

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Solution

The fourth proportional to 530,615.44, 732,012.72 and 358,478.08 is: 494,539.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,615.44 : 732,012.72 = 358,478.08 : x
  2. Step 2: Convert to fraction form
    530,615.44/732,012.72 = 358,478.08/x
  3. Step 3: Cross multiply
    530,615.44x = 732,012.72 × 358,478.08
  4. Step 4: Simplify right side
    530,615.44x = 262,410,514,401.18
  5. Step 5: Solve for x
    x = 262,410,514,401.18/530,615.44
  6. Step 6: Final answer
    x = 494,539.91

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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.