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Finding the Fourth Proportional to 637,298.80, 955,948.20 and 525,324.40

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Solution

The fourth proportional to 637,298.80, 955,948.20 and 525,324.40 is: 787,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,298.80 : 955,948.20 = 525,324.40 : x
  2. Step 2: Convert to fraction form
    637,298.80/955,948.20 = 525,324.40/x
  3. Step 3: Cross multiply
    637,298.80x = 955,948.20 × 525,324.40
  4. Step 4: Simplify right side
    637,298.80x = 502,182,914,596.08
  5. Step 5: Solve for x
    x = 502,182,914,596.08/637,298.80
  6. Step 6: Final answer
    x = 787,986.60

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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.