Home / 528,526.66-729,366.79-286,809.23

Finding the Fourth Proportional to 528,526.66, 729,366.79 and 286,809.23

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Solution

The fourth proportional to 528,526.66, 729,366.79 and 286,809.23 is: 395,796.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,526.66 : 729,366.79 = 286,809.23 : x
  2. Step 2: Convert to fraction form
    528,526.66/729,366.79 = 286,809.23/x
  3. Step 3: Cross multiply
    528,526.66x = 729,366.79 × 286,809.23
  4. Step 4: Simplify right side
    528,526.66x = 209,189,130,500.63
  5. Step 5: Solve for x
    x = 209,189,130,500.63/528,526.66
  6. Step 6: Final answer
    x = 395,796.74

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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.