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Finding the Fourth Proportional to 539,999.30, 808,832.55 and 470,015.30

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Solution

The fourth proportional to 539,999.30, 808,832.55 and 470,015.30 is: 704,007.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,999.30 : 808,832.55 = 470,015.30 : x
  2. Step 2: Convert to fraction form
    539,999.30/808,832.55 = 470,015.30/x
  3. Step 3: Cross multiply
    539,999.30x = 808,832.55 × 470,015.30
  4. Step 4: Simplify right side
    539,999.30x = 380,163,673,638.02
  5. Step 5: Solve for x
    x = 380,163,673,638.02/539,999.30
  6. Step 6: Final answer
    x = 704,007.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.