Home / 865,009.80-1,193,749.74-497,487.18

Finding the Fourth Proportional to 865,009.80, 1,193,749.74 and 497,487.18

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Solution

The fourth proportional to 865,009.80, 1,193,749.74 and 497,487.18 is: 686,553.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,009.80 : 1,193,749.74 = 497,487.18 : x
  2. Step 2: Convert to fraction form
    865,009.80/1,193,749.74 = 497,487.18/x
  3. Step 3: Cross multiply
    865,009.80x = 1,193,749.74 × 497,487.18
  4. Step 4: Simplify right side
    865,009.80x = 593,875,191,778.33
  5. Step 5: Solve for x
    x = 593,875,191,778.33/865,009.80
  6. Step 6: Final answer
    x = 686,553.14

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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.