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Finding the Fourth Proportional to 883,862.40, 1,326,254.40 and 385,276.80

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Solution

The fourth proportional to 883,862.40, 1,326,254.40 and 385,276.80 is: 578,116.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,862.40 : 1,326,254.40 = 385,276.80 : x
  2. Step 2: Convert to fraction form
    883,862.40/1,326,254.40 = 385,276.80/x
  3. Step 3: Cross multiply
    883,862.40x = 1,326,254.40 × 385,276.80
  4. Step 4: Simplify right side
    883,862.40x = 510,975,051,217.92
  5. Step 5: Solve for x
    x = 510,975,051,217.92/883,862.40
  6. Step 6: Final answer
    x = 578,116.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.