Home / 840,700.85-1,160,192.79-478,176.93

Finding the Fourth Proportional to 840,700.85, 1,160,192.79 and 478,176.93

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Solution

The fourth proportional to 840,700.85, 1,160,192.79 and 478,176.93 is: 659,898.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,700.85 : 1,160,192.79 = 478,176.93 : x
  2. Step 2: Convert to fraction form
    840,700.85/1,160,192.79 = 478,176.93/x
  3. Step 3: Cross multiply
    840,700.85x = 1,160,192.79 × 478,176.93
  4. Step 4: Simplify right side
    840,700.85x = 554,777,426,530.34
  5. Step 5: Solve for x
    x = 554,777,426,530.34/840,700.85
  6. Step 6: Final answer
    x = 659,898.74

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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.