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Finding the Fourth Proportional to 416,140.40, 624,210.60 and 346,098.80

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Solution

The fourth proportional to 416,140.40, 624,210.60 and 346,098.80 is: 519,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,140.40 : 624,210.60 = 346,098.80 : x
  2. Step 2: Convert to fraction form
    416,140.40/624,210.60 = 346,098.80/x
  3. Step 3: Cross multiply
    416,140.40x = 624,210.60 × 346,098.80
  4. Step 4: Simplify right side
    416,140.40x = 216,038,539,607.28
  5. Step 5: Solve for x
    x = 216,038,539,607.28/416,140.40
  6. Step 6: Final answer
    x = 519,148.20

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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.