Home / 691,345.28-954,133.44-436,684.16

Finding the Fourth Proportional to 691,345.28, 954,133.44 and 436,684.16

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Solution

The fourth proportional to 691,345.28, 954,133.44 and 436,684.16 is: 602,672.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,345.28 : 954,133.44 = 436,684.16 : x
  2. Step 2: Convert to fraction form
    691,345.28/954,133.44 = 436,684.16/x
  3. Step 3: Cross multiply
    691,345.28x = 954,133.44 × 436,684.16
  4. Step 4: Simplify right side
    691,345.28x = 416,654,959,774.31
  5. Step 5: Solve for x
    x = 416,654,959,774.31/691,345.28
  6. Step 6: Final answer
    x = 602,672.75

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Half scale
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Double scale
Find fourth proportional to 691,346.28, 954,134.82 and 436,685.16
Similar ratio
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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.