Home / 528,664.32-729,537.21-286,941.69

Finding the Fourth Proportional to 528,664.32, 729,537.21 and 286,941.69

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Solution

The fourth proportional to 528,664.32, 729,537.21 and 286,941.69 is: 395,968.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,664.32 : 729,537.21 = 286,941.69 : x
  2. Step 2: Convert to fraction form
    528,664.32/729,537.21 = 286,941.69/x
  3. Step 3: Cross multiply
    528,664.32x = 729,537.21 × 286,941.69
  4. Step 4: Simplify right side
    528,664.32x = 209,334,639,955.29
  5. Step 5: Solve for x
    x = 209,334,639,955.29/528,664.32
  6. Step 6: Final answer
    x = 395,968.92

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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.