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Finding the Fourth Proportional to 670,264.92, 925,905.47 and 609,728.76

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Solution

The fourth proportional to 670,264.92, 925,905.47 and 609,728.76 is: 842,280.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,264.92 : 925,905.47 = 609,728.76 : x
  2. Step 2: Convert to fraction form
    670,264.92/925,905.47 = 609,728.76/x
  3. Step 3: Cross multiply
    670,264.92x = 925,905.47 × 609,728.76
  4. Step 4: Simplify right side
    670,264.92x = 564,551,191,051.67
  5. Step 5: Solve for x
    x = 564,551,191,051.67/670,264.92
  6. Step 6: Final answer
    x = 842,280.68

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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.