Home / 699,145.16-964,827.06-397,341.32

Finding the Fourth Proportional to 699,145.16, 964,827.06 and 397,341.32

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Solution

The fourth proportional to 699,145.16, 964,827.06 and 397,341.32 is: 548,334.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,145.16 : 964,827.06 = 397,341.32 : x
  2. Step 2: Convert to fraction form
    699,145.16/964,827.06 = 397,341.32/x
  3. Step 3: Cross multiply
    699,145.16x = 964,827.06 × 397,341.32
  4. Step 4: Simplify right side
    699,145.16x = 383,365,657,592.12
  5. Step 5: Solve for x
    x = 383,365,657,592.12/699,145.16
  6. Step 6: Final answer
    x = 548,334.85

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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.