Home / 688,857.60-1,033,286.40-531,393.60

Finding the Fourth Proportional to 688,857.60, 1,033,286.40 and 531,393.60

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Solution

The fourth proportional to 688,857.60, 1,033,286.40 and 531,393.60 is: 797,090.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,857.60 : 1,033,286.40 = 531,393.60 : x
  2. Step 2: Convert to fraction form
    688,857.60/1,033,286.40 = 531,393.60/x
  3. Step 3: Cross multiply
    688,857.60x = 1,033,286.40 × 531,393.60
  4. Step 4: Simplify right side
    688,857.60x = 549,081,779,927.04
  5. Step 5: Solve for x
    x = 549,081,779,927.04/688,857.60
  6. Step 6: Final answer
    x = 797,090.40

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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.