Home / 719,095.60-992,313.30-396,742.60

Finding the Fourth Proportional to 719,095.60, 992,313.30 and 396,742.60

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Solution

The fourth proportional to 719,095.60, 992,313.30 and 396,742.60 is: 547,483.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,095.60 : 992,313.30 = 396,742.60 : x
  2. Step 2: Convert to fraction form
    719,095.60/992,313.30 = 396,742.60/x
  3. Step 3: Cross multiply
    719,095.60x = 992,313.30 × 396,742.60
  4. Step 4: Simplify right side
    719,095.60x = 393,692,958,656.58
  5. Step 5: Solve for x
    x = 393,692,958,656.58/719,095.60
  6. Step 6: Final answer
    x = 547,483.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.