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Finding the Fourth Proportional to 672,638.04, 927,715.32 and 430,943.04

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Solution

The fourth proportional to 672,638.04, 927,715.32 and 430,943.04 is: 594,364.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,638.04 : 927,715.32 = 430,943.04 : x
  2. Step 2: Convert to fraction form
    672,638.04/927,715.32 = 430,943.04/x
  3. Step 3: Cross multiply
    672,638.04x = 927,715.32 × 430,943.04
  4. Step 4: Simplify right side
    672,638.04x = 399,792,460,255.37
  5. Step 5: Solve for x
    x = 399,792,460,255.37/672,638.04
  6. Step 6: Final answer
    x = 594,364.93

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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.