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Finding the Fourth Proportional to 663,599.59, 990,554.85 and 569,434.88

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Solution

The fourth proportional to 663,599.59, 990,554.85 and 569,434.88 is: 849,995.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,599.59 : 990,554.85 = 569,434.88 : x
  2. Step 2: Convert to fraction form
    663,599.59/990,554.85 = 569,434.88/x
  3. Step 3: Cross multiply
    663,599.59x = 990,554.85 × 569,434.88
  4. Step 4: Simplify right side
    663,599.59x = 564,056,484,619.56
  5. Step 5: Solve for x
    x = 564,056,484,619.56/663,599.59
  6. Step 6: Final answer
    x = 849,995.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.