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Finding the Fourth Proportional to 937,679.76, 1,293,996.47 and 507,970.71

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Solution

The fourth proportional to 937,679.76, 1,293,996.47 and 507,970.71 is: 700,998.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    937,679.76 : 1,293,996.47 = 507,970.71 : x
  2. Step 2: Convert to fraction form
    937,679.76/1,293,996.47 = 507,970.71/x
  3. Step 3: Cross multiply
    937,679.76x = 1,293,996.47 × 507,970.71
  4. Step 4: Simplify right side
    937,679.76x = 657,312,303,063.54
  5. Step 5: Solve for x
    x = 657,312,303,063.54/937,679.76
  6. Step 6: Final answer
    x = 700,998.71

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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.