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Finding the Fourth Proportional to 374,680.80, 562,021.20 and 358,934.40

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Solution

The fourth proportional to 374,680.80, 562,021.20 and 358,934.40 is: 538,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,680.80 : 562,021.20 = 358,934.40 : x
  2. Step 2: Convert to fraction form
    374,680.80/562,021.20 = 358,934.40/x
  3. Step 3: Cross multiply
    374,680.80x = 562,021.20 × 358,934.40
  4. Step 4: Simplify right side
    374,680.80x = 201,728,742,209.28
  5. Step 5: Solve for x
    x = 201,728,742,209.28/374,680.80
  6. Step 6: Final answer
    x = 538,401.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.