Home / 623,581.40-935,372.10-542,480.60

Finding the Fourth Proportional to 623,581.40, 935,372.10 and 542,480.60

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Solution

The fourth proportional to 623,581.40, 935,372.10 and 542,480.60 is: 813,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,581.40 : 935,372.10 = 542,480.60 : x
  2. Step 2: Convert to fraction form
    623,581.40/935,372.10 = 542,480.60/x
  3. Step 3: Cross multiply
    623,581.40x = 935,372.10 × 542,480.60
  4. Step 4: Simplify right side
    623,581.40x = 507,421,218,031.26
  5. Step 5: Solve for x
    x = 507,421,218,031.26/623,581.40
  6. Step 6: Final answer
    x = 813,720.90

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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.