Home / 740,688.92-1,022,147.53-414,001.47

Finding the Fourth Proportional to 740,688.92, 1,022,147.53 and 414,001.47

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Solution

The fourth proportional to 740,688.92, 1,022,147.53 and 414,001.47 is: 571,320.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,688.92 : 1,022,147.53 = 414,001.47 : x
  2. Step 2: Convert to fraction form
    740,688.92/1,022,147.53 = 414,001.47/x
  3. Step 3: Cross multiply
    740,688.92x = 1,022,147.53 × 414,001.47
  4. Step 4: Simplify right side
    740,688.92x = 423,170,578,941.87
  5. Step 5: Solve for x
    x = 423,170,578,941.87/740,688.92
  6. Step 6: Final answer
    x = 571,320.25

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Double scale
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Similar ratio
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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.