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Finding the Fourth Proportional to 614,368.40, 847,867.20 and 372,673.76

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Solution

The fourth proportional to 614,368.40, 847,867.20 and 372,673.76 is: 514,313.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,368.40 : 847,867.20 = 372,673.76 : x
  2. Step 2: Convert to fraction form
    614,368.40/847,867.20 = 372,673.76/x
  3. Step 3: Cross multiply
    614,368.40x = 847,867.20 × 372,673.76
  4. Step 4: Simplify right side
    614,368.40x = 315,977,857,404.67
  5. Step 5: Solve for x
    x = 315,977,857,404.67/614,368.40
  6. Step 6: Final answer
    x = 514,313.33

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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.