Home / 661,325.04-912,699.90-374,814.36

Finding the Fourth Proportional to 661,325.04, 912,699.90 and 374,814.36

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Solution

The fourth proportional to 661,325.04, 912,699.90 and 374,814.36 is: 517,284.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,325.04 : 912,699.90 = 374,814.36 : x
  2. Step 2: Convert to fraction form
    661,325.04/912,699.90 = 374,814.36/x
  3. Step 3: Cross multiply
    661,325.04x = 912,699.90 × 374,814.36
  4. Step 4: Simplify right side
    661,325.04x = 342,093,028,890.56
  5. Step 5: Solve for x
    x = 342,093,028,890.56/661,325.04
  6. Step 6: Final answer
    x = 517,284.25

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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.