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Finding the Fourth Proportional to 634,916.80, 875,935.74 and 362,838.72

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Solution

The fourth proportional to 634,916.80, 875,935.74 and 362,838.72 is: 500,574.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,916.80 : 875,935.74 = 362,838.72 : x
  2. Step 2: Convert to fraction form
    634,916.80/875,935.74 = 362,838.72/x
  3. Step 3: Cross multiply
    634,916.80x = 875,935.74 × 362,838.72
  4. Step 4: Simplify right side
    634,916.80x = 317,823,402,703.85
  5. Step 5: Solve for x
    x = 317,823,402,703.85/634,916.80
  6. Step 6: Final answer
    x = 500,574.88

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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.