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Finding the Fourth Proportional to 472,328.40, 708,492.60 and 446,523.60

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Solution

The fourth proportional to 472,328.40, 708,492.60 and 446,523.60 is: 669,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,328.40 : 708,492.60 = 446,523.60 : x
  2. Step 2: Convert to fraction form
    472,328.40/708,492.60 = 446,523.60/x
  3. Step 3: Cross multiply
    472,328.40x = 708,492.60 × 446,523.60
  4. Step 4: Simplify right side
    472,328.40x = 316,358,666,325.36
  5. Step 5: Solve for x
    x = 316,358,666,325.36/472,328.40
  6. Step 6: Final answer
    x = 669,785.40

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Similar ratio
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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.