Home / 1,068,862.40-1,604,200.80-438,228.80

Finding the Fourth Proportional to 1,068,862.40, 1,604,200.80 and 438,228.80

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Solution

The fourth proportional to 1,068,862.40, 1,604,200.80 and 438,228.80 is: 657,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,862.40 : 1,604,200.80 = 438,228.80 : x
  2. Step 2: Convert to fraction form
    1,068,862.40/1,604,200.80 = 438,228.80/x
  3. Step 3: Cross multiply
    1,068,862.40x = 1,604,200.80 × 438,228.80
  4. Step 4: Simplify right side
    1,068,862.40x = 703,006,991,543.04
  5. Step 5: Solve for x
    x = 703,006,991,543.04/1,068,862.40
  6. Step 6: Final answer
    x = 657,715.15

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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.