Home / 939,795.60-1,409,693.40-434,355.60

Finding the Fourth Proportional to 939,795.60, 1,409,693.40 and 434,355.60

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Solution

The fourth proportional to 939,795.60, 1,409,693.40 and 434,355.60 is: 651,533.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,795.60 : 1,409,693.40 = 434,355.60 : x
  2. Step 2: Convert to fraction form
    939,795.60/1,409,693.40 = 434,355.60/x
  3. Step 3: Cross multiply
    939,795.60x = 1,409,693.40 × 434,355.60
  4. Step 4: Simplify right side
    939,795.60x = 612,308,222,573.04
  5. Step 5: Solve for x
    x = 612,308,222,573.04/939,795.60
  6. Step 6: Final answer
    x = 651,533.40

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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.