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Finding the Fourth Proportional to 627,779.10, 941,668.65 and 207,000.30

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Solution

The fourth proportional to 627,779.10, 941,668.65 and 207,000.30 is: 310,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,779.10 : 941,668.65 = 207,000.30 : x
  2. Step 2: Convert to fraction form
    627,779.10/941,668.65 = 207,000.30/x
  3. Step 3: Cross multiply
    627,779.10x = 941,668.65 × 207,000.30
  4. Step 4: Simplify right side
    627,779.10x = 194,925,693,050.60
  5. Step 5: Solve for x
    x = 194,925,693,050.60/627,779.10
  6. Step 6: Final answer
    x = 310,500.45

Related Problems

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Half scale
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Double scale
Find fourth proportional to 627,780.10, 941,670.15 and 207,001.30
Similar ratio
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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.