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Finding the Fourth Proportional to 366,350.40, 549,655.20 and 353,390.40

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Solution

The fourth proportional to 366,350.40, 549,655.20 and 353,390.40 is: 530,210.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,350.40 : 549,655.20 = 353,390.40 : x
  2. Step 2: Convert to fraction form
    366,350.40/549,655.20 = 353,390.40/x
  3. Step 3: Cross multiply
    366,350.40x = 549,655.20 × 353,390.40
  4. Step 4: Simplify right side
    366,350.40x = 194,242,870,990.08
  5. Step 5: Solve for x
    x = 194,242,870,990.08/366,350.40
  6. Step 6: Final answer
    x = 530,210.62

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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.