Home / 779,349.60-1,169,024.40-639,266.40

Finding the Fourth Proportional to 779,349.60, 1,169,024.40 and 639,266.40

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Solution

The fourth proportional to 779,349.60, 1,169,024.40 and 639,266.40 is: 958,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,349.60 : 1,169,024.40 = 639,266.40 : x
  2. Step 2: Convert to fraction form
    779,349.60/1,169,024.40 = 639,266.40/x
  3. Step 3: Cross multiply
    779,349.60x = 1,169,024.40 × 639,266.40
  4. Step 4: Simplify right side
    779,349.60x = 747,318,019,700.16
  5. Step 5: Solve for x
    x = 747,318,019,700.16/779,349.60
  6. Step 6: Final answer
    x = 958,899.60

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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.