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Finding the Fourth Proportional to 670,312.61, 925,050.54 and 408,683.01

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Solution

The fourth proportional to 670,312.61, 925,050.54 and 408,683.01 is: 563,994.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,312.61 : 925,050.54 = 408,683.01 : x
  2. Step 2: Convert to fraction form
    670,312.61/925,050.54 = 408,683.01/x
  3. Step 3: Cross multiply
    670,312.61x = 925,050.54 × 408,683.01
  4. Step 4: Simplify right side
    670,312.61x = 378,052,439,089.33
  5. Step 5: Solve for x
    x = 378,052,439,089.33/670,312.61
  6. Step 6: Final answer
    x = 563,994.22

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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.