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Finding the Fourth Proportional to 651,657.30, 977,485.95 and 440,150.10

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Solution

The fourth proportional to 651,657.30, 977,485.95 and 440,150.10 is: 660,225.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,657.30 : 977,485.95 = 440,150.10 : x
  2. Step 2: Convert to fraction form
    651,657.30/977,485.95 = 440,150.10/x
  3. Step 3: Cross multiply
    651,657.30x = 977,485.95 × 440,150.10
  4. Step 4: Simplify right side
    651,657.30x = 430,240,538,641.10
  5. Step 5: Solve for x
    x = 430,240,538,641.10/651,657.30
  6. Step 6: Final answer
    x = 660,225.15

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Half scale
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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.