Home / 619,852.40-929,354.14-315,657.72

Finding the Fourth Proportional to 619,852.40, 929,354.14 and 315,657.72

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Solution

The fourth proportional to 619,852.40, 929,354.14 and 315,657.72 is: 473,270.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,852.40 : 929,354.14 = 315,657.72 : x
  2. Step 2: Convert to fraction form
    619,852.40/929,354.14 = 315,657.72/x
  3. Step 3: Cross multiply
    619,852.40x = 929,354.14 × 315,657.72
  4. Step 4: Simplify right side
    619,852.40x = 293,357,808,904.96
  5. Step 5: Solve for x
    x = 293,357,808,904.96/619,852.40
  6. Step 6: Final answer
    x = 473,270.43

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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.