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Finding the Fourth Proportional to 744,019.40, 1,026,700.84 and 417,314.40

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Solution

The fourth proportional to 744,019.40, 1,026,700.84 and 417,314.40 is: 575,868.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,019.40 : 1,026,700.84 = 417,314.40 : x
  2. Step 2: Convert to fraction form
    744,019.40/1,026,700.84 = 417,314.40/x
  3. Step 3: Cross multiply
    744,019.40x = 1,026,700.84 × 417,314.40
  4. Step 4: Simplify right side
    744,019.40x = 428,457,045,024.10
  5. Step 5: Solve for x
    x = 428,457,045,024.10/744,019.40
  6. Step 6: Final answer
    x = 575,868.11

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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.