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Finding the Fourth Proportional to 700,277.60, 965,221.32 and 496,066.40

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Solution

The fourth proportional to 700,277.60, 965,221.32 and 496,066.40 is: 683,748.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,277.60 : 965,221.32 = 496,066.40 : x
  2. Step 2: Convert to fraction form
    700,277.60/965,221.32 = 496,066.40/x
  3. Step 3: Cross multiply
    700,277.60x = 965,221.32 × 496,066.40
  4. Step 4: Simplify right side
    700,277.60x = 478,813,865,415.65
  5. Step 5: Solve for x
    x = 478,813,865,415.65/700,277.60
  6. Step 6: Final answer
    x = 683,748.65

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Double scale
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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.