Home / 528,585.25-729,448.02-286,867.77

Finding the Fourth Proportional to 528,585.25, 729,448.02 and 286,867.77

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Solution

The fourth proportional to 528,585.25, 729,448.02 and 286,867.77 is: 395,877.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,585.25 : 729,448.02 = 286,867.77 : x
  2. Step 2: Convert to fraction form
    528,585.25/729,448.02 = 286,867.77/x
  3. Step 3: Cross multiply
    528,585.25x = 729,448.02 × 286,867.77
  4. Step 4: Simplify right side
    528,585.25x = 209,255,126,828.32
  5. Step 5: Solve for x
    x = 209,255,126,828.32/528,585.25
  6. Step 6: Final answer
    x = 395,877.73

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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.