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Finding the Fourth Proportional to 651,711.80, 977,567.70 and 452,646.20

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Solution

The fourth proportional to 651,711.80, 977,567.70 and 452,646.20 is: 678,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,711.80 : 977,567.70 = 452,646.20 : x
  2. Step 2: Convert to fraction form
    651,711.80/977,567.70 = 452,646.20/x
  3. Step 3: Cross multiply
    651,711.80x = 977,567.70 × 452,646.20
  4. Step 4: Simplify right side
    651,711.80x = 442,492,304,647.74
  5. Step 5: Solve for x
    x = 442,492,304,647.74/651,711.80
  6. Step 6: Final answer
    x = 678,969.30

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Double scale
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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.