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Finding the Fourth Proportional to 583,453.40, 875,180.10 and 485,038.40

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Solution

The fourth proportional to 583,453.40, 875,180.10 and 485,038.40 is: 727,557.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,453.40 : 875,180.10 = 485,038.40 : x
  2. Step 2: Convert to fraction form
    583,453.40/875,180.10 = 485,038.40/x
  3. Step 3: Cross multiply
    583,453.40x = 875,180.10 × 485,038.40
  4. Step 4: Simplify right side
    583,453.40x = 424,495,955,415.84
  5. Step 5: Solve for x
    x = 424,495,955,415.84/583,453.40
  6. Step 6: Final answer
    x = 727,557.60

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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.