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Finding the Fourth Proportional to 581,312.40, 802,117.80 and 326,662.80

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Solution

The fourth proportional to 581,312.40, 802,117.80 and 326,662.80 is: 450,742.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,312.40 : 802,117.80 = 326,662.80 : x
  2. Step 2: Convert to fraction form
    581,312.40/802,117.80 = 326,662.80/x
  3. Step 3: Cross multiply
    581,312.40x = 802,117.80 × 326,662.80
  4. Step 4: Simplify right side
    581,312.40x = 262,022,046,477.84
  5. Step 5: Solve for x
    x = 262,022,046,477.84/581,312.40
  6. Step 6: Final answer
    x = 450,742.23

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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.