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Finding the Fourth Proportional to 803,213.92, 1,108,424.72 and 459,045.92

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Solution

The fourth proportional to 803,213.92, 1,108,424.72 and 459,045.92 is: 633,477.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,213.92 : 1,108,424.72 = 459,045.92 : x
  2. Step 2: Convert to fraction form
    803,213.92/1,108,424.72 = 459,045.92/x
  3. Step 3: Cross multiply
    803,213.92x = 1,108,424.72 × 459,045.92
  4. Step 4: Simplify right side
    803,213.92x = 508,817,845,343.14
  5. Step 5: Solve for x
    x = 508,817,845,343.14/803,213.92
  6. Step 6: Final answer
    x = 633,477.37

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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.