Home / 525,981.60-788,972.40-171,007.20

Finding the Fourth Proportional to 525,981.60, 788,972.40 and 171,007.20

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Solution

The fourth proportional to 525,981.60, 788,972.40 and 171,007.20 is: 256,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,981.60 : 788,972.40 = 171,007.20 : x
  2. Step 2: Convert to fraction form
    525,981.60/788,972.40 = 171,007.20/x
  3. Step 3: Cross multiply
    525,981.60x = 788,972.40 × 171,007.20
  4. Step 4: Simplify right side
    525,981.60x = 134,919,961,001.28
  5. Step 5: Solve for x
    x = 134,919,961,001.28/525,981.60
  6. Step 6: Final answer
    x = 256,510.80

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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.