Home / 528,622.37-729,499.57-286,904.94

Finding the Fourth Proportional to 528,622.37, 729,499.57 and 286,904.94

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Solution

The fourth proportional to 528,622.37, 729,499.57 and 286,904.94 is: 395,929.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,622.37 : 729,499.57 = 286,904.94 : x
  2. Step 2: Convert to fraction form
    528,622.37/729,499.57 = 286,904.94/x
  3. Step 3: Cross multiply
    528,622.37x = 729,499.57 × 286,904.94
  4. Step 4: Simplify right side
    528,622.37x = 209,297,026,907.99
  5. Step 5: Solve for x
    x = 209,297,026,907.99/528,622.37
  6. Step 6: Final answer
    x = 395,929.19

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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.