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Finding the Fourth Proportional to 404,875.20, 607,312.80 and 374,462.40

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Solution

The fourth proportional to 404,875.20, 607,312.80 and 374,462.40 is: 561,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,875.20 : 607,312.80 = 374,462.40 : x
  2. Step 2: Convert to fraction form
    404,875.20/607,312.80 = 374,462.40/x
  3. Step 3: Cross multiply
    404,875.20x = 607,312.80 × 374,462.40
  4. Step 4: Simplify right side
    404,875.20x = 227,415,808,638.72
  5. Step 5: Solve for x
    x = 227,415,808,638.72/404,875.20
  6. Step 6: Final answer
    x = 561,693.60

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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.