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Finding the Fourth Proportional to 670,401.90, 925,154.46 and 368,595.90

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Solution

The fourth proportional to 670,401.90, 925,154.46 and 368,595.90 is: 508,662.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,401.90 : 925,154.46 = 368,595.90 : x
  2. Step 2: Convert to fraction form
    670,401.90/925,154.46 = 368,595.90/x
  3. Step 3: Cross multiply
    670,401.90x = 925,154.46 × 368,595.90
  4. Step 4: Simplify right side
    670,401.90x = 341,008,140,822.71
  5. Step 5: Solve for x
    x = 341,008,140,822.71/670,401.90
  6. Step 6: Final answer
    x = 508,662.25

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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.