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Finding the Fourth Proportional to 528,779.14, 729,444.90 and 337,591.60

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Solution

The fourth proportional to 528,779.14, 729,444.90 and 337,591.60 is: 465,703.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,779.14 : 729,444.90 = 337,591.60 : x
  2. Step 2: Convert to fraction form
    528,779.14/729,444.90 = 337,591.60/x
  3. Step 3: Cross multiply
    528,779.14x = 729,444.90 × 337,591.60
  4. Step 4: Simplify right side
    528,779.14x = 246,254,470,902.84
  5. Step 5: Solve for x
    x = 246,254,470,902.84/528,779.14
  6. Step 6: Final answer
    x = 465,703.83

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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.