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Finding the Fourth Proportional to 539,328.88, 744,276 and 297,618.40

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Solution

The fourth proportional to 539,328.88, 744,276 and 297,618.40 is: 410,714.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,328.88 : 744,276 = 297,618.40 : x
  2. Step 2: Convert to fraction form
    539,328.88/744,276 = 297,618.40/x
  3. Step 3: Cross multiply
    539,328.88x = 744,276 × 297,618.40
  4. Step 4: Simplify right side
    539,328.88x = 221,510,232,278.40
  5. Step 5: Solve for x
    x = 221,510,232,278.40/539,328.88
  6. Step 6: Final answer
    x = 410,714.58

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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.