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Finding the Fourth Proportional to 504,368.16, 696,007.10 and 274,920.40

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Solution

The fourth proportional to 504,368.16, 696,007.10 and 274,920.40 is: 379,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,368.16 : 696,007.10 = 274,920.40 : x
  2. Step 2: Convert to fraction form
    504,368.16/696,007.10 = 274,920.40/x
  3. Step 3: Cross multiply
    504,368.16x = 696,007.10 × 274,920.40
  4. Step 4: Simplify right side
    504,368.16x = 191,346,550,334.84
  5. Step 5: Solve for x
    x = 191,346,550,334.84/504,368.16
  6. Step 6: Final answer
    x = 379,378.73

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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.