Home / 631,551.40-947,327.10-579,941.80

Finding the Fourth Proportional to 631,551.40, 947,327.10 and 579,941.80

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Solution

The fourth proportional to 631,551.40, 947,327.10 and 579,941.80 is: 869,912.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,551.40 : 947,327.10 = 579,941.80 : x
  2. Step 2: Convert to fraction form
    631,551.40/947,327.10 = 579,941.80/x
  3. Step 3: Cross multiply
    631,551.40x = 947,327.10 × 579,941.80
  4. Step 4: Simplify right side
    631,551.40x = 549,394,583,562.78
  5. Step 5: Solve for x
    x = 549,394,583,562.78/631,551.40
  6. Step 6: Final answer
    x = 869,912.70

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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.