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Finding the Fourth Proportional to 483,312.76, 725,430.42 and 296,688.76

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Solution

The fourth proportional to 483,312.76, 725,430.42 and 296,688.76 is: 445,316.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,312.76 : 725,430.42 = 296,688.76 : x
  2. Step 2: Convert to fraction form
    483,312.76/725,430.42 = 296,688.76/x
  3. Step 3: Cross multiply
    483,312.76x = 725,430.42 × 296,688.76
  4. Step 4: Simplify right side
    483,312.76x = 215,227,051,776.08
  5. Step 5: Solve for x
    x = 215,227,051,776.08/483,312.76
  6. Step 6: Final answer
    x = 445,316.30

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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.