Home / 528,544.79-729,392.27-286,827.36

Finding the Fourth Proportional to 528,544.79, 729,392.27 and 286,827.36

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Solution

The fourth proportional to 528,544.79, 729,392.27 and 286,827.36 is: 395,822.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,544.79 : 729,392.27 = 286,827.36 : x
  2. Step 2: Convert to fraction form
    528,544.79/729,392.27 = 286,827.36/x
  3. Step 3: Cross multiply
    528,544.79x = 729,392.27 × 286,827.36
  4. Step 4: Simplify right side
    528,544.79x = 209,209,657,774.37
  5. Step 5: Solve for x
    x = 209,209,657,774.37/528,544.79
  6. Step 6: Final answer
    x = 395,822.01

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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.