Home / 623,904.60-935,856.90-518,928.60

Finding the Fourth Proportional to 623,904.60, 935,856.90 and 518,928.60

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Solution

The fourth proportional to 623,904.60, 935,856.90 and 518,928.60 is: 778,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,904.60 : 935,856.90 = 518,928.60 : x
  2. Step 2: Convert to fraction form
    623,904.60/935,856.90 = 518,928.60/x
  3. Step 3: Cross multiply
    623,904.60x = 935,856.90 × 518,928.60
  4. Step 4: Simplify right side
    623,904.60x = 485,642,910,917.34
  5. Step 5: Solve for x
    x = 485,642,910,917.34/623,904.60
  6. Step 6: Final answer
    x = 778,392.90

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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.