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Finding the Fourth Proportional to 369,095.52, 509,315.41 and 207,979.23

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Solution

The fourth proportional to 369,095.52, 509,315.41 and 207,979.23 is: 286,990.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,095.52 : 509,315.41 = 207,979.23 : x
  2. Step 2: Convert to fraction form
    369,095.52/509,315.41 = 207,979.23/x
  3. Step 3: Cross multiply
    369,095.52x = 509,315.41 × 207,979.23
  4. Step 4: Simplify right side
    369,095.52x = 105,927,026,798.93
  5. Step 5: Solve for x
    x = 105,927,026,798.93/369,095.52
  6. Step 6: Final answer
    x = 286,990.82

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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.