Home / 919,228.38-1,268,388.63-556,590.30

Finding the Fourth Proportional to 919,228.38, 1,268,388.63 and 556,590.30

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Solution

The fourth proportional to 919,228.38, 1,268,388.63 and 556,590.30 is: 768,005.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,228.38 : 1,268,388.63 = 556,590.30 : x
  2. Step 2: Convert to fraction form
    919,228.38/1,268,388.63 = 556,590.30/x
  3. Step 3: Cross multiply
    919,228.38x = 1,268,388.63 × 556,590.30
  4. Step 4: Simplify right side
    919,228.38x = 705,972,808,088.29
  5. Step 5: Solve for x
    x = 705,972,808,088.29/919,228.38
  6. Step 6: Final answer
    x = 768,005.89

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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.