Home / 756,088.40-1,134,132.60-257,452.40

Finding the Fourth Proportional to 756,088.40, 1,134,132.60 and 257,452.40

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Solution

The fourth proportional to 756,088.40, 1,134,132.60 and 257,452.40 is: 386,178.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,088.40 : 1,134,132.60 = 257,452.40 : x
  2. Step 2: Convert to fraction form
    756,088.40/1,134,132.60 = 257,452.40/x
  3. Step 3: Cross multiply
    756,088.40x = 1,134,132.60 × 257,452.40
  4. Step 4: Simplify right side
    756,088.40x = 291,985,159,788.24
  5. Step 5: Solve for x
    x = 291,985,159,788.24/756,088.40
  6. Step 6: Final answer
    x = 386,178.60

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Half scale
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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.