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Finding the Fourth Proportional to 651,692.40, 977,538.60 and 553,277.40

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Solution

The fourth proportional to 651,692.40, 977,538.60 and 553,277.40 is: 829,916.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,692.40 : 977,538.60 = 553,277.40 : x
  2. Step 2: Convert to fraction form
    651,692.40/977,538.60 = 553,277.40/x
  3. Step 3: Cross multiply
    651,692.40x = 977,538.60 × 553,277.40
  4. Step 4: Simplify right side
    651,692.40x = 540,850,015,007.64
  5. Step 5: Solve for x
    x = 540,850,015,007.64/651,692.40
  6. Step 6: Final answer
    x = 829,916.10

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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.