Home / 857,997.19-1,184,013.55-470,811.42

Finding the Fourth Proportional to 857,997.19, 1,184,013.55 and 470,811.42

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Solution

The fourth proportional to 857,997.19, 1,184,013.55 and 470,811.42 is: 649,707.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,997.19 : 1,184,013.55 = 470,811.42 : x
  2. Step 2: Convert to fraction form
    857,997.19/1,184,013.55 = 470,811.42/x
  3. Step 3: Cross multiply
    857,997.19x = 1,184,013.55 × 470,811.42
  4. Step 4: Simplify right side
    857,997.19x = 557,447,101,363.26
  5. Step 5: Solve for x
    x = 557,447,101,363.26/857,997.19
  6. Step 6: Final answer
    x = 649,707.37

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Half scale
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Double scale
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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.