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Finding the Fourth Proportional to 669,865.37, 924,360.59 and 383,319.77

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Solution

The fourth proportional to 669,865.37, 924,360.59 and 383,319.77 is: 528,950.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,865.37 : 924,360.59 = 383,319.77 : x
  2. Step 2: Convert to fraction form
    669,865.37/924,360.59 = 383,319.77/x
  3. Step 3: Cross multiply
    669,865.37x = 924,360.59 × 383,319.77
  4. Step 4: Simplify right side
    669,865.37x = 354,325,686,839.27
  5. Step 5: Solve for x
    x = 354,325,686,839.27/669,865.37
  6. Step 6: Final answer
    x = 528,950.60

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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.