Home / 520,340.64-718,084.08-293,981.28

Finding the Fourth Proportional to 520,340.64, 718,084.08 and 293,981.28

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Solution

The fourth proportional to 520,340.64, 718,084.08 and 293,981.28 is: 405,702.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,340.64 : 718,084.08 = 293,981.28 : x
  2. Step 2: Convert to fraction form
    520,340.64/718,084.08 = 293,981.28/x
  3. Step 3: Cross multiply
    520,340.64x = 718,084.08 × 293,981.28
  4. Step 4: Simplify right side
    520,340.64x = 211,103,276,986.02
  5. Step 5: Solve for x
    x = 211,103,276,986.02/520,340.64
  6. Step 6: Final answer
    x = 405,702.07

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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.