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Finding the Fourth Proportional to 369,916.80, 554,875.20 and 201,955.20

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Solution

The fourth proportional to 369,916.80, 554,875.20 and 201,955.20 is: 302,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,916.80 : 554,875.20 = 201,955.20 : x
  2. Step 2: Convert to fraction form
    369,916.80/554,875.20 = 201,955.20/x
  3. Step 3: Cross multiply
    369,916.80x = 554,875.20 × 201,955.20
  4. Step 4: Simplify right side
    369,916.80x = 112,059,931,991.04
  5. Step 5: Solve for x
    x = 112,059,931,991.04/369,916.80
  6. Step 6: Final answer
    x = 302,932.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.