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Finding the Fourth Proportional to 524,871.60, 787,307.40 and 363,908.40

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Solution

The fourth proportional to 524,871.60, 787,307.40 and 363,908.40 is: 545,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,871.60 : 787,307.40 = 363,908.40 : x
  2. Step 2: Convert to fraction form
    524,871.60/787,307.40 = 363,908.40/x
  3. Step 3: Cross multiply
    524,871.60x = 787,307.40 × 363,908.40
  4. Step 4: Simplify right side
    524,871.60x = 286,507,776,242.16
  5. Step 5: Solve for x
    x = 286,507,776,242.16/524,871.60
  6. Step 6: Final answer
    x = 545,862.60

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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.