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Finding the Fourth Proportional to 6,398,953.70, 9,598,430.55 and 5,769,097.70

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Solution

The fourth proportional to 6,398,953.70, 9,598,430.55 and 5,769,097.70 is: 8,653,646.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398,953.70 : 9,598,430.55 = 5,769,097.70 : x
  2. Step 2: Convert to fraction form
    6,398,953.70/9,598,430.55 = 5,769,097.70/x
  3. Step 3: Cross multiply
    6,398,953.70x = 9,598,430.55 × 5,769,097.70
  4. Step 4: Simplify right side
    6,398,953.70x = 55,374,283,609,614.74
  5. Step 5: Solve for x
    x = 55,374,283,609,614.74/6,398,953.70
  6. Step 6: Final answer
    x = 8,653,646.55

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Similar ratio
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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.