Home / 457,176.40-685,764.60-190,848.40

Finding the Fourth Proportional to 457,176.40, 685,764.60 and 190,848.40

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Solution

The fourth proportional to 457,176.40, 685,764.60 and 190,848.40 is: 286,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,176.40 : 685,764.60 = 190,848.40 : x
  2. Step 2: Convert to fraction form
    457,176.40/685,764.60 = 190,848.40/x
  3. Step 3: Cross multiply
    457,176.40x = 685,764.60 × 190,848.40
  4. Step 4: Simplify right side
    457,176.40x = 130,877,076,686.64
  5. Step 5: Solve for x
    x = 130,877,076,686.64/457,176.40
  6. Step 6: Final answer
    x = 286,272.60

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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.