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Finding the Fourth Proportional to 403,347.68, 556,859.40 and 358,507.52

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Solution

The fourth proportional to 403,347.68, 556,859.40 and 358,507.52 is: 494,953.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,347.68 : 556,859.40 = 358,507.52 : x
  2. Step 2: Convert to fraction form
    403,347.68/556,859.40 = 358,507.52/x
  3. Step 3: Cross multiply
    403,347.68x = 556,859.40 × 358,507.52
  4. Step 4: Simplify right side
    403,347.68x = 199,638,282,482.69
  5. Step 5: Solve for x
    x = 199,638,282,482.69/403,347.68
  6. Step 6: Final answer
    x = 494,953.34

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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.