Home / 728,088.40-1,092,132.60-651,980.80

Finding the Fourth Proportional to 728,088.40, 1,092,132.60 and 651,980.80

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Solution

The fourth proportional to 728,088.40, 1,092,132.60 and 651,980.80 is: 977,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,088.40 : 1,092,132.60 = 651,980.80 : x
  2. Step 2: Convert to fraction form
    728,088.40/1,092,132.60 = 651,980.80/x
  3. Step 3: Cross multiply
    728,088.40x = 1,092,132.60 × 651,980.80
  4. Step 4: Simplify right side
    728,088.40x = 712,049,486,254.08
  5. Step 5: Solve for x
    x = 712,049,486,254.08/728,088.40
  6. Step 6: Final answer
    x = 977,971.20

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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.