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Finding the Fourth Proportional to 885,509.52, 1,328,902.56 and 352,722.32

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Solution

The fourth proportional to 885,509.52, 1,328,902.56 and 352,722.32 is: 529,337.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,509.52 : 1,328,902.56 = 352,722.32 : x
  2. Step 2: Convert to fraction form
    885,509.52/1,328,902.56 = 352,722.32/x
  3. Step 3: Cross multiply
    885,509.52x = 1,328,902.56 × 352,722.32
  4. Step 4: Simplify right side
    885,509.52x = 468,733,594,017.14
  5. Step 5: Solve for x
    x = 468,733,594,017.14/885,509.52
  6. Step 6: Final answer
    x = 529,337.72

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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.