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Finding the Fourth Proportional to 536,547.80, 740,223.78 and 345,672.50

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Solution

The fourth proportional to 536,547.80, 740,223.78 and 345,672.50 is: 476,891.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,547.80 : 740,223.78 = 345,672.50 : x
  2. Step 2: Convert to fraction form
    536,547.80/740,223.78 = 345,672.50/x
  3. Step 3: Cross multiply
    536,547.80x = 740,223.78 × 345,672.50
  4. Step 4: Simplify right side
    536,547.80x = 255,875,004,592.05
  5. Step 5: Solve for x
    x = 255,875,004,592.05/536,547.80
  6. Step 6: Final answer
    x = 476,891.35

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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.