Home / 578,988,836.40-868,483,254.60-256,502,564.40

Finding the Fourth Proportional to 578,988,836.40, 868,483,254.60 and 256,502,564.40

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Solution

The fourth proportional to 578,988,836.40, 868,483,254.60 and 256,502,564.40 is: 384,753,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,988,836.40 : 868,483,254.60 = 256,502,564.40 : x
  2. Step 2: Convert to fraction form
    578,988,836.40/868,483,254.60 = 256,502,564.40/x
  3. Step 3: Cross multiply
    578,988,836.40x = 868,483,254.60 × 256,502,564.40
  4. Step 4: Simplify right side
    578,988,836.40x = 222,768,181,943,358,112
  5. Step 5: Solve for x
    x = 222,768,181,943,358,112/578,988,836.40
  6. Step 6: Final answer
    x = 384,753,846.60

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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.