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Finding the Fourth Proportional to 352,547.48, 486,545.65 and 199,612.62

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Solution

The fourth proportional to 352,547.48, 486,545.65 and 199,612.62 is: 275,482.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,547.48 : 486,545.65 = 199,612.62 : x
  2. Step 2: Convert to fraction form
    352,547.48/486,545.65 = 199,612.62/x
  3. Step 3: Cross multiply
    352,547.48x = 486,545.65 × 199,612.62
  4. Step 4: Simplify right side
    352,547.48x = 97,120,651,447.07
  5. Step 5: Solve for x
    x = 97,120,651,447.07/352,547.48
  6. Step 6: Final answer
    x = 275,482.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.