Home / 631,230.30-946,845.45-519,037.20

Finding the Fourth Proportional to 631,230.30, 946,845.45 and 519,037.20

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Solution

The fourth proportional to 631,230.30, 946,845.45 and 519,037.20 is: 778,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,230.30 : 946,845.45 = 519,037.20 : x
  2. Step 2: Convert to fraction form
    631,230.30/946,845.45 = 519,037.20/x
  3. Step 3: Cross multiply
    631,230.30x = 946,845.45 × 519,037.20
  4. Step 4: Simplify right side
    631,230.30x = 491,448,011,200.74
  5. Step 5: Solve for x
    x = 491,448,011,200.74/631,230.30
  6. Step 6: Final answer
    x = 778,555.80

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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.