Home / 711,205.23-982,271.58-478,226.86

Finding the Fourth Proportional to 711,205.23, 982,271.58 and 478,226.86

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Solution

The fourth proportional to 711,205.23, 982,271.58 and 478,226.86 is: 660,496.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,205.23 : 982,271.58 = 478,226.86 : x
  2. Step 2: Convert to fraction form
    711,205.23/982,271.58 = 478,226.86/x
  3. Step 3: Cross multiply
    711,205.23x = 982,271.58 × 478,226.86
  4. Step 4: Simplify right side
    711,205.23x = 469,748,650,914.96
  5. Step 5: Solve for x
    x = 469,748,650,914.96/711,205.23
  6. Step 6: Final answer
    x = 660,496.62

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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.