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Finding the Fourth Proportional to 607,316.90, 910,975.35 and 207,922.10

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Solution

The fourth proportional to 607,316.90, 910,975.35 and 207,922.10 is: 311,883.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,316.90 : 910,975.35 = 207,922.10 : x
  2. Step 2: Convert to fraction form
    607,316.90/910,975.35 = 207,922.10/x
  3. Step 3: Cross multiply
    607,316.90x = 910,975.35 × 207,922.10
  4. Step 4: Simplify right side
    607,316.90x = 189,411,907,820.24
  5. Step 5: Solve for x
    x = 189,411,907,820.24/607,316.90
  6. Step 6: Final answer
    x = 311,883.15

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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.