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Finding the Fourth Proportional to 834,782.80, 1,152,000.84 and 452,808.40

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Solution

The fourth proportional to 834,782.80, 1,152,000.84 and 452,808.40 is: 624,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,782.80 : 1,152,000.84 = 452,808.40 : x
  2. Step 2: Convert to fraction form
    834,782.80/1,152,000.84 = 452,808.40/x
  3. Step 3: Cross multiply
    834,782.80x = 1,152,000.84 × 452,808.40
  4. Step 4: Simplify right side
    834,782.80x = 521,635,657,159.06
  5. Step 5: Solve for x
    x = 521,635,657,159.06/834,782.80
  6. Step 6: Final answer
    x = 624,875.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.