Home / 865,653.60-1,298,480.40-510,837.60

Finding the Fourth Proportional to 865,653.60, 1,298,480.40 and 510,837.60

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Solution

The fourth proportional to 865,653.60, 1,298,480.40 and 510,837.60 is: 766,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,653.60 : 1,298,480.40 = 510,837.60 : x
  2. Step 2: Convert to fraction form
    865,653.60/1,298,480.40 = 510,837.60/x
  3. Step 3: Cross multiply
    865,653.60x = 1,298,480.40 × 510,837.60
  4. Step 4: Simplify right side
    865,653.60x = 663,312,611,183.04
  5. Step 5: Solve for x
    x = 663,312,611,183.04/865,653.60
  6. Step 6: Final answer
    x = 766,256.40

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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.