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Finding the Fourth Proportional to 377,547.42, 565,656.80 and 355,071.90

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Solution

The fourth proportional to 377,547.42, 565,656.80 and 355,071.90 is: 531,983.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,547.42 : 565,656.80 = 355,071.90 : x
  2. Step 2: Convert to fraction form
    377,547.42/565,656.80 = 355,071.90/x
  3. Step 3: Cross multiply
    377,547.42x = 565,656.80 × 355,071.90
  4. Step 4: Simplify right side
    377,547.42x = 200,848,834,723.92
  5. Step 5: Solve for x
    x = 200,848,834,723.92/377,547.42
  6. Step 6: Final answer
    x = 531,983.07

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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.