Home / 553,553.20-829,811.40-433,543.60

Finding the Fourth Proportional to 553,553.20, 829,811.40 and 433,543.60

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Solution

The fourth proportional to 553,553.20, 829,811.40 and 433,543.60 is: 649,909.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,553.20 : 829,811.40 = 433,543.60 : x
  2. Step 2: Convert to fraction form
    553,553.20/829,811.40 = 433,543.60/x
  3. Step 3: Cross multiply
    553,553.20x = 829,811.40 × 433,543.60
  4. Step 4: Simplify right side
    553,553.20x = 359,759,421,677.04
  5. Step 5: Solve for x
    x = 359,759,421,677.04/553,553.20
  6. Step 6: Final answer
    x = 649,909.39

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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.