Home / 865,397.58-1,194,242.11-478,239.10

Finding the Fourth Proportional to 865,397.58, 1,194,242.11 and 478,239.10

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Solution

The fourth proportional to 865,397.58, 1,194,242.11 and 478,239.10 is: 659,966.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,397.58 : 1,194,242.11 = 478,239.10 : x
  2. Step 2: Convert to fraction form
    865,397.58/1,194,242.11 = 478,239.10/x
  3. Step 3: Cross multiply
    865,397.58x = 1,194,242.11 × 478,239.10
  4. Step 4: Simplify right side
    865,397.58x = 571,133,271,868.50
  5. Step 5: Solve for x
    x = 571,133,271,868.50/865,397.58
  6. Step 6: Final answer
    x = 659,966.34

Related Problems

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Half scale
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Double scale
Find fourth proportional to 865,398.58, 1,194,243.49 and 478,240.10
Similar ratio
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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.