Home / 712,729.32-983,193.63-440,710.26

Finding the Fourth Proportional to 712,729.32, 983,193.63 and 440,710.26

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Solution

The fourth proportional to 712,729.32, 983,193.63 and 440,710.26 is: 607,949.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,729.32 : 983,193.63 = 440,710.26 : x
  2. Step 2: Convert to fraction form
    712,729.32/983,193.63 = 440,710.26/x
  3. Step 3: Cross multiply
    712,729.32x = 983,193.63 × 440,710.26
  4. Step 4: Simplify right side
    712,729.32x = 433,303,520,307.64
  5. Step 5: Solve for x
    x = 433,303,520,307.64/712,729.32
  6. Step 6: Final answer
    x = 607,949.62

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Double scale
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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.