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Finding the Fourth Proportional to 563,232, 777,068.80 and 321,340.80

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Solution

The fourth proportional to 563,232, 777,068.80 and 321,340.80 is: 443,341.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,232 : 777,068.80 = 321,340.80 : x
  2. Step 2: Convert to fraction form
    563,232/777,068.80 = 321,340.80/x
  3. Step 3: Cross multiply
    563,232x = 777,068.80 × 321,340.80
  4. Step 4: Simplify right side
    563,232x = 249,703,909,847.04
  5. Step 5: Solve for x
    x = 249,703,909,847.04/563,232
  6. Step 6: Final answer
    x = 443,341.13

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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.