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Finding the Fourth Proportional to 400,045.80, 600,068.70 and 367,386.60

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Solution

The fourth proportional to 400,045.80, 600,068.70 and 367,386.60 is: 551,079.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,045.80 : 600,068.70 = 367,386.60 : x
  2. Step 2: Convert to fraction form
    400,045.80/600,068.70 = 367,386.60/x
  3. Step 3: Cross multiply
    400,045.80x = 600,068.70 × 367,386.60
  4. Step 4: Simplify right side
    400,045.80x = 220,457,199,459.42
  5. Step 5: Solve for x
    x = 220,457,199,459.42/400,045.80
  6. Step 6: Final answer
    x = 551,079.90

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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.