Home / 528,508.08-729,337.38-286,784.46

Finding the Fourth Proportional to 528,508.08, 729,337.38 and 286,784.46

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Solution

The fourth proportional to 528,508.08, 729,337.38 and 286,784.46 is: 395,760.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,508.08 : 729,337.38 = 286,784.46 : x
  2. Step 2: Convert to fraction form
    528,508.08/729,337.38 = 286,784.46/x
  3. Step 3: Cross multiply
    528,508.08x = 729,337.38 × 286,784.46
  4. Step 4: Simplify right side
    528,508.08x = 209,162,626,681.12
  5. Step 5: Solve for x
    x = 209,162,626,681.12/528,508.08
  6. Step 6: Final answer
    x = 395,760.51

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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.