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Finding the Fourth Proportional to 673,292.16, 929,136.96 and 371,488.32

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Solution

The fourth proportional to 673,292.16, 929,136.96 and 371,488.32 is: 512,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,292.16 : 929,136.96 = 371,488.32 : x
  2. Step 2: Convert to fraction form
    673,292.16/929,136.96 = 371,488.32/x
  3. Step 3: Cross multiply
    673,292.16x = 929,136.96 × 371,488.32
  4. Step 4: Simplify right side
    673,292.16x = 345,163,528,320.31
  5. Step 5: Solve for x
    x = 345,163,528,320.31/673,292.16
  6. Step 6: Final answer
    x = 512,650.45

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Double scale
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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.