Home / 528,621.86-729,498.89-286,904.44

Finding the Fourth Proportional to 528,621.86, 729,498.89 and 286,904.44

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Solution

The fourth proportional to 528,621.86, 729,498.89 and 286,904.44 is: 395,928.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,621.86 : 729,498.89 = 286,904.44 : x
  2. Step 2: Convert to fraction form
    528,621.86/729,498.89 = 286,904.44/x
  3. Step 3: Cross multiply
    528,621.86x = 729,498.89 × 286,904.44
  4. Step 4: Simplify right side
    528,621.86x = 209,296,466,151.32
  5. Step 5: Solve for x
    x = 209,296,466,151.32/528,621.86
  6. Step 6: Final answer
    x = 395,928.51

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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.