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Finding the Fourth Proportional to 736,375.88, 1,016,212.52 and 430,478.40

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Solution

The fourth proportional to 736,375.88, 1,016,212.52 and 430,478.40 is: 594,068.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,375.88 : 1,016,212.52 = 430,478.40 : x
  2. Step 2: Convert to fraction form
    736,375.88/1,016,212.52 = 430,478.40/x
  3. Step 3: Cross multiply
    736,375.88x = 1,016,212.52 × 430,478.40
  4. Step 4: Simplify right side
    736,375.88x = 437,457,539,669.57
  5. Step 5: Solve for x
    x = 437,457,539,669.57/736,375.88
  6. Step 6: Final answer
    x = 594,068.26

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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.