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Finding the Fourth Proportional to 577,368.70, 864,412.80 and 545,948.80

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Solution

The fourth proportional to 577,368.70, 864,412.80 and 545,948.80 is: 817,372.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,368.70 : 864,412.80 = 545,948.80 : x
  2. Step 2: Convert to fraction form
    577,368.70/864,412.80 = 545,948.80/x
  3. Step 3: Cross multiply
    577,368.70x = 864,412.80 × 545,948.80
  4. Step 4: Simplify right side
    577,368.70x = 471,925,130,864.64
  5. Step 5: Solve for x
    x = 471,925,130,864.64/577,368.70
  6. Step 6: Final answer
    x = 817,372.21

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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.