Home / 813,955.84-1,123,330.08-474,416.80

Finding the Fourth Proportional to 813,955.84, 1,123,330.08 and 474,416.80

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Solution

The fourth proportional to 813,955.84, 1,123,330.08 and 474,416.80 is: 654,736.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,955.84 : 1,123,330.08 = 474,416.80 : x
  2. Step 2: Convert to fraction form
    813,955.84/1,123,330.08 = 474,416.80/x
  3. Step 3: Cross multiply
    813,955.84x = 1,123,330.08 × 474,416.80
  4. Step 4: Simplify right side
    813,955.84x = 532,926,661,897.34
  5. Step 5: Solve for x
    x = 532,926,661,897.34/813,955.84
  6. Step 6: Final answer
    x = 654,736.58

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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.