Home / 531,565.10-733,543.80-289,852.39

Finding the Fourth Proportional to 531,565.10, 733,543.80 and 289,852.39

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Solution

The fourth proportional to 531,565.10, 733,543.80 and 289,852.39 is: 399,987.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,565.10 : 733,543.80 = 289,852.39 : x
  2. Step 2: Convert to fraction form
    531,565.10/733,543.80 = 289,852.39/x
  3. Step 3: Cross multiply
    531,565.10x = 733,543.80 × 289,852.39
  4. Step 4: Simplify right side
    531,565.10x = 212,619,419,931.96
  5. Step 5: Solve for x
    x = 212,619,419,931.96/531,565.10
  6. Step 6: Final answer
    x = 399,987.55

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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.