Home / 525,853.40-788,780.10-193,386.20

Finding the Fourth Proportional to 525,853.40, 788,780.10 and 193,386.20

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Solution

The fourth proportional to 525,853.40, 788,780.10 and 193,386.20 is: 290,079.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,853.40 : 788,780.10 = 193,386.20 : x
  2. Step 2: Convert to fraction form
    525,853.40/788,780.10 = 193,386.20/x
  3. Step 3: Cross multiply
    525,853.40x = 788,780.10 × 193,386.20
  4. Step 4: Simplify right side
    525,853.40x = 152,539,186,174.62
  5. Step 5: Solve for x
    x = 152,539,186,174.62/525,853.40
  6. Step 6: Final answer
    x = 290,079.30

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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.