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Finding the Fourth Proportional to 583,685.53, 805,611.27 and 368,688.85

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Solution

The fourth proportional to 583,685.53, 805,611.27 and 368,688.85 is: 508,869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,685.53 : 805,611.27 = 368,688.85 : x
  2. Step 2: Convert to fraction form
    583,685.53/805,611.27 = 368,688.85/x
  3. Step 3: Cross multiply
    583,685.53x = 805,611.27 × 368,688.85
  4. Step 4: Simplify right side
    583,685.53x = 297,019,892,683.34
  5. Step 5: Solve for x
    x = 297,019,892,683.34/583,685.53
  6. Step 6: Final answer
    x = 508,869.72

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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.