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Finding the Fourth Proportional to 530,329.68, 732,221.10 and 496,450.32

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Solution

The fourth proportional to 530,329.68, 732,221.10 and 496,450.32 is: 685,444.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,329.68 : 732,221.10 = 496,450.32 : x
  2. Step 2: Convert to fraction form
    530,329.68/732,221.10 = 496,450.32/x
  3. Step 3: Cross multiply
    530,329.68x = 732,221.10 × 496,450.32
  4. Step 4: Simplify right side
    530,329.68x = 363,511,399,405.75
  5. Step 5: Solve for x
    x = 363,511,399,405.75/530,329.68
  6. Step 6: Final answer
    x = 685,444.19

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Double scale
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Similar ratio
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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.