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Finding the Fourth Proportional to 713,367.91, 984,421.32 and 386,673.91

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Solution

The fourth proportional to 713,367.91, 984,421.32 and 386,673.91 is: 533,595.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,367.91 : 984,421.32 = 386,673.91 : x
  2. Step 2: Convert to fraction form
    713,367.91/984,421.32 = 386,673.91/x
  3. Step 3: Cross multiply
    713,367.91x = 984,421.32 × 386,673.91
  4. Step 4: Simplify right side
    713,367.91x = 380,650,035,969.66
  5. Step 5: Solve for x
    x = 380,650,035,969.66/713,367.91
  6. Step 6: Final answer
    x = 533,595.69

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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.