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Finding the Fourth Proportional to 369,492.98, 509,203.56 and 267,345.50

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Solution

The fourth proportional to 369,492.98, 509,203.56 and 267,345.50 is: 368,432.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,492.98 : 509,203.56 = 267,345.50 : x
  2. Step 2: Convert to fraction form
    369,492.98/509,203.56 = 267,345.50/x
  3. Step 3: Cross multiply
    369,492.98x = 509,203.56 × 267,345.50
  4. Step 4: Simplify right side
    369,492.98x = 136,133,278,806.51
  5. Step 5: Solve for x
    x = 136,133,278,806.51/369,492.98
  6. Step 6: Final answer
    x = 368,432.66

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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.