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Finding the Fourth Proportional to 366,476.70, 549,715.05 and 313,988.70

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Solution

The fourth proportional to 366,476.70, 549,715.05 and 313,988.70 is: 470,983.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,476.70 : 549,715.05 = 313,988.70 : x
  2. Step 2: Convert to fraction form
    366,476.70/549,715.05 = 313,988.70/x
  3. Step 3: Cross multiply
    366,476.70x = 549,715.05 × 313,988.70
  4. Step 4: Simplify right side
    366,476.70x = 172,604,313,919.94
  5. Step 5: Solve for x
    x = 172,604,313,919.94/366,476.70
  6. Step 6: Final answer
    x = 470,983.05

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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.