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Finding the Fourth Proportional to 867,978.17, 1,301,336.36 and 362,683.77

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Solution

The fourth proportional to 867,978.17, 1,301,336.36 and 362,683.77 is: 543,762.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,978.17 : 1,301,336.36 = 362,683.77 : x
  2. Step 2: Convert to fraction form
    867,978.17/1,301,336.36 = 362,683.77/x
  3. Step 3: Cross multiply
    867,978.17x = 1,301,336.36 × 362,683.77
  4. Step 4: Simplify right side
    867,978.17x = 471,973,577,082.88
  5. Step 5: Solve for x
    x = 471,973,577,082.88/867,978.17
  6. Step 6: Final answer
    x = 543,762.04

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1.5x scale

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.