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Finding the Fourth Proportional to 679,411.79, 937,600.16 and 373,501.11

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Solution

The fourth proportional to 679,411.79, 937,600.16 and 373,501.11 is: 515,438.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,411.79 : 937,600.16 = 373,501.11 : x
  2. Step 2: Convert to fraction form
    679,411.79/937,600.16 = 373,501.11/x
  3. Step 3: Cross multiply
    679,411.79x = 937,600.16 × 373,501.11
  4. Step 4: Simplify right side
    679,411.79x = 350,194,698,628.67
  5. Step 5: Solve for x
    x = 350,194,698,628.67/679,411.79
  6. Step 6: Final answer
    x = 515,438.07

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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.