Home / 688,230.56-949,784.82-382,330.16

Finding the Fourth Proportional to 688,230.56, 949,784.82 and 382,330.16

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Solution

The fourth proportional to 688,230.56, 949,784.82 and 382,330.16 is: 527,630.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,230.56 : 949,784.82 = 382,330.16 : x
  2. Step 2: Convert to fraction form
    688,230.56/949,784.82 = 382,330.16/x
  3. Step 3: Cross multiply
    688,230.56x = 949,784.82 × 382,330.16
  4. Step 4: Simplify right side
    688,230.56x = 363,131,382,196.17
  5. Step 5: Solve for x
    x = 363,131,382,196.17/688,230.56
  6. Step 6: Final answer
    x = 527,630.42

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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.