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Finding the Fourth Proportional to 242,547.60, 363,821.40 and 221,552.40

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Solution

The fourth proportional to 242,547.60, 363,821.40 and 221,552.40 is: 332,328.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,547.60 : 363,821.40 = 221,552.40 : x
  2. Step 2: Convert to fraction form
    242,547.60/363,821.40 = 221,552.40/x
  3. Step 3: Cross multiply
    242,547.60x = 363,821.40 × 221,552.40
  4. Step 4: Simplify right side
    242,547.60x = 80,605,504,341.36
  5. Step 5: Solve for x
    x = 80,605,504,341.36/242,547.60
  6. Step 6: Final answer
    x = 332,328.60

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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.