Home / 677,431.07-934,856.18-371,509.60

Finding the Fourth Proportional to 677,431.07, 934,856.18 and 371,509.60

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Solution

The fourth proportional to 677,431.07, 934,856.18 and 371,509.60 is: 512,683.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,431.07 : 934,856.18 = 371,509.60 : x
  2. Step 2: Convert to fraction form
    677,431.07/934,856.18 = 371,509.60/x
  3. Step 3: Cross multiply
    677,431.07x = 934,856.18 × 371,509.60
  4. Step 4: Simplify right side
    677,431.07x = 347,308,044,080.96
  5. Step 5: Solve for x
    x = 347,308,044,080.96/677,431.07
  6. Step 6: Final answer
    x = 512,683.96

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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.