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Finding the Fourth Proportional to 673,756.32, 929,700 and 371,948.16

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Solution

The fourth proportional to 673,756.32, 929,700 and 371,948.16 is: 513,242.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,756.32 : 929,700 = 371,948.16 : x
  2. Step 2: Convert to fraction form
    673,756.32/929,700 = 371,948.16/x
  3. Step 3: Cross multiply
    673,756.32x = 929,700 × 371,948.16
  4. Step 4: Simplify right side
    673,756.32x = 345,800,204,352
  5. Step 5: Solve for x
    x = 345,800,204,352/673,756.32
  6. Step 6: Final answer
    x = 513,242.24

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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.