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Finding the Fourth Proportional to 732,889.48, 1,011,363 and 406,188.56

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Solution

The fourth proportional to 732,889.48, 1,011,363 and 406,188.56 is: 560,526.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,889.48 : 1,011,363 = 406,188.56 : x
  2. Step 2: Convert to fraction form
    732,889.48/1,011,363 = 406,188.56/x
  3. Step 3: Cross multiply
    732,889.48x = 1,011,363 × 406,188.56
  4. Step 4: Simplify right side
    732,889.48x = 410,804,080,607.28
  5. Step 5: Solve for x
    x = 410,804,080,607.28/732,889.48
  6. Step 6: Final answer
    x = 560,526.64

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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.