Home / 1,225,440.40-1,838,218.20-384,019.60

Finding the Fourth Proportional to 1,225,440.40, 1,838,218.20 and 384,019.60

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Solution

The fourth proportional to 1,225,440.40, 1,838,218.20 and 384,019.60 is: 576,047.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,440.40 : 1,838,218.20 = 384,019.60 : x
  2. Step 2: Convert to fraction form
    1,225,440.40/1,838,218.20 = 384,019.60/x
  3. Step 3: Cross multiply
    1,225,440.40x = 1,838,218.20 × 384,019.60
  4. Step 4: Simplify right side
    1,225,440.40x = 705,911,817,876.72
  5. Step 5: Solve for x
    x = 705,911,817,876.72/1,225,440.40
  6. Step 6: Final answer
    x = 576,047.45

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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.