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Finding the Fourth Proportional to 736,707.80, 1,105,061.70 and 559,560.80

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Solution

The fourth proportional to 736,707.80, 1,105,061.70 and 559,560.80 is: 839,341.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,707.80 : 1,105,061.70 = 559,560.80 : x
  2. Step 2: Convert to fraction form
    736,707.80/1,105,061.70 = 559,560.80/x
  3. Step 3: Cross multiply
    736,707.80x = 1,105,061.70 × 559,560.80
  4. Step 4: Simplify right side
    736,707.80x = 618,349,208,901.36
  5. Step 5: Solve for x
    x = 618,349,208,901.36/736,707.80
  6. Step 6: Final answer
    x = 839,341.20

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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.