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Finding the Fourth Proportional to 614,681.80, 922,022.70 and 520,203.40

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Solution

The fourth proportional to 614,681.80, 922,022.70 and 520,203.40 is: 780,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,681.80 : 922,022.70 = 520,203.40 : x
  2. Step 2: Convert to fraction form
    614,681.80/922,022.70 = 520,203.40/x
  3. Step 3: Cross multiply
    614,681.80x = 922,022.70 × 520,203.40
  4. Step 4: Simplify right side
    614,681.80x = 479,639,343,417.18
  5. Step 5: Solve for x
    x = 479,639,343,417.18/614,681.80
  6. Step 6: Final answer
    x = 780,305.10

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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.