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Finding the Fourth Proportional to 614,681.91, 848,271.51 and 339,071.40

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Solution

The fourth proportional to 614,681.91, 848,271.51 and 339,071.40 is: 467,924.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,681.91 : 848,271.51 = 339,071.40 : x
  2. Step 2: Convert to fraction form
    614,681.91/848,271.51 = 339,071.40/x
  3. Step 3: Cross multiply
    614,681.91x = 848,271.51 × 339,071.40
  4. Step 4: Simplify right side
    614,681.91x = 287,624,608,475.81
  5. Step 5: Solve for x
    x = 287,624,608,475.81/614,681.91
  6. Step 6: Final answer
    x = 467,924.31

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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.