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Finding the Fourth Proportional to 583,601.13, 805,369.56 and 315,329.13

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Solution

The fourth proportional to 583,601.13, 805,369.56 and 315,329.13 is: 435,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,601.13 : 805,369.56 = 315,329.13 : x
  2. Step 2: Convert to fraction form
    583,601.13/805,369.56 = 315,329.13/x
  3. Step 3: Cross multiply
    583,601.13x = 805,369.56 × 315,329.13
  4. Step 4: Simplify right side
    583,601.13x = 253,956,482,683.28
  5. Step 5: Solve for x
    x = 253,956,482,683.28/583,601.13
  6. Step 6: Final answer
    x = 435,154.20

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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.