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Finding the Fourth Proportional to 528,594.38, 729,454.17 and 286,877.12

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Solution

The fourth proportional to 528,594.38, 729,454.17 and 286,877.12 is: 395,887.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,594.38 : 729,454.17 = 286,877.12 : x
  2. Step 2: Convert to fraction form
    528,594.38/729,454.17 = 286,877.12/x
  3. Step 3: Cross multiply
    528,594.38x = 729,454.17 × 286,877.12
  4. Step 4: Simplify right side
    528,594.38x = 209,263,708,890.11
  5. Step 5: Solve for x
    x = 209,263,708,890.11/528,594.38
  6. Step 6: Final answer
    x = 395,887.12

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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.