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Finding the Fourth Proportional to 583,805.66, 805,651.45 and 315,533.66

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Solution

The fourth proportional to 583,805.66, 805,651.45 and 315,533.66 is: 435,436.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,805.66 : 805,651.45 = 315,533.66 : x
  2. Step 2: Convert to fraction form
    583,805.66/805,651.45 = 315,533.66/x
  3. Step 3: Cross multiply
    583,805.66x = 805,651.45 × 315,533.66
  4. Step 4: Simplify right side
    583,805.66x = 254,210,145,885.72
  5. Step 5: Solve for x
    x = 254,210,145,885.72/583,805.66
  6. Step 6: Final answer
    x = 435,436.25

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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.