Home / 631,472.54-947,444.07-378,934.19

Finding the Fourth Proportional to 631,472.54, 947,444.07 and 378,934.19

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Solution

The fourth proportional to 631,472.54, 947,444.07 and 378,934.19 is: 568,542.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,472.54 : 947,444.07 = 378,934.19 : x
  2. Step 2: Convert to fraction form
    631,472.54/947,444.07 = 378,934.19/x
  3. Step 3: Cross multiply
    631,472.54x = 947,444.07 × 378,934.19
  4. Step 4: Simplify right side
    631,472.54x = 359,018,946,498.53
  5. Step 5: Solve for x
    x = 359,018,946,498.53/631,472.54
  6. Step 6: Final answer
    x = 568,542.46

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.